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Arkansas ATLAS · Geometry EOC · Math

Arkansas ATLAS Geometry EOC Practice Test

Build Geometry Arkansas ATLAS EOC readiness with five focused 10-question practice sets covering angles, triangles, similarity, transformations, coordinates, circles, measurement, proofs, and modeling.

Arkansas ATLAS Geometry EOC practice sets

This Arkansas ATLAS Geometry EOC Practice Test page provides five short practice sets with 10 original multiple-choice questions each. The sets support supplemental review of angles, triangles, similarity, transformations, coordinates, circles, measurement, proofs, and geometric modeling.

Geometry skills covered

  • Parallel lines, angle relationships, triangle congruence, similarity, proof reasons, and exterior angles
  • Right triangles, sine, cosine, tangent, scale factors, geometric means, and real-world triangle models
  • Midpoints, distance, slope, reflections, rotations, dilations, translations, circles, and coordinate quadrilaterals
  • Circumference, area, arc and angle relationships, tangents, volume, surface area, sectors, and composite figures
  • Similar figures, parallelograms, rhombi, area models, polygon angles, transformations, and geometric reasoning

How to use this page

Complete one 10-question set at a time. Draw or visualize the diagram, write the geometric relationship, and review the explanation for every missed or guessed answer.

This is supplemental State Test Practice, State Assessment Practice, and Standardized Test Practice. It does not replace current Arkansas Department of Education ATLAS guidance, official blueprints, calculator policies, accommodations, or testing schedules.

For the broader Arkansas assessment hub, visit Arkansas State Assessments.

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5 Tests
1. Test2. Test3. Test4. Test5. Test

2. Test

Arkansas ATLAS Geometry EOC Practice Questions

A 10-question Arkansas ATLAS Geometry EOC practice set on triangles, similarity, and trigonometry, with answers and explanations.

Read each geometry problem carefully, choose one answer, and review the explanation after responding.

10 Questions
0/10 Questions0 %
Correct 0
Incorrect 0
Unanswered 10
1. QuestionMultiple choice

A right triangle has legs of 6 units and 8 units. What is the hypotenuse?

Please select an answer first.

Correct answer: A

The correct answer is 10units10 units.

  1. Identify the geometry idea: Decide whether the question uses angles, triangles, similarity, transformations, coordinates, circles, measurement, or proof.
  2. Show the reasoning: By the Pythagorean theorem, 6 squared + 8 squared = 100, so the hypotenuse is 10 units.
  3. Check the result: Review the diagram relationships, units, signs, and geometric definitions before choosing the answer.

By the Pythagorean theorem, 6 squared + 8 squared = 100, so the hypotenuse is 10 units.

2. QuestionMultiple choice

A right triangle has opposite side 5 and hypotenuse 13 relative to angle θ. Which ratio represents sin⁡θ\sin θ?

Please select an answer first.

Correct answer: B

The correct answer is 513\frac{5}{13}.

  1. Identify the geometry idea: Decide whether the question uses angles, triangles, similarity, transformations, coordinates, circles, measurement, or proof.
  2. Show the reasoning: Sine equals opposite divided by hypotenuse, so sin θ = 5/13.
  3. Check the result: Review the diagram relationships, units, signs, and geometric definitions before choosing the answer.

Sine equals opposite divided by hypotenuse, so sin θ = 5/13.

3. QuestionMultiple choice

A right triangle has adjacent side 12 and hypotenuse 13 relative to angle θ. Which ratio represents cos⁡θ\cos θ?

Please select an answer first.

Correct answer: C

The correct answer is 1213\frac{12}{13}.

  1. Identify the geometry idea: Decide whether the question uses angles, triangles, similarity, transformations, coordinates, circles, measurement, or proof.
  2. Show the reasoning: Cosine equals adjacent divided by hypotenuse, so cos θ = 12/13.
  3. Check the result: Review the diagram relationships, units, signs, and geometric definitions before choosing the answer.

Cosine equals adjacent divided by hypotenuse, so cos θ = 12/13.

4. QuestionMultiple choice

A right triangle has opposite side 8 and adjacent side 15 relative to angle θ. Which ratio represents tan⁡θ\tan θ?

Please select an answer first.

Correct answer: D

The correct answer is 815\frac{8}{15}.

  1. Identify the geometry idea: Decide whether the question uses angles, triangles, similarity, transformations, coordinates, circles, measurement, or proof.
  2. Show the reasoning: Tangent equals opposite divided by adjacent, so tan θ = 8/15.
  3. Check the result: Review the diagram relationships, units, signs, and geometric definitions before choosing the answer.

Tangent equals opposite divided by adjacent, so tan θ = 8/15.

5. QuestionMultiple choice

Two similar triangles have a scale factor of 3 from the smaller triangle to the larger triangle. If a smaller side is 7 units, what is the corresponding larger side?

Please select an answer first.

Correct answer: A

The correct answer is 21units21 units.

  1. Identify the geometry idea: Decide whether the question uses angles, triangles, similarity, transformations, coordinates, circles, measurement, or proof.
  2. Show the reasoning: Multiply the smaller side by the scale factor: 7 × 3 = 21 units.
  3. Check the result: Review the diagram relationships, units, signs, and geometric definitions before choosing the answer.

Multiply the smaller side by the scale factor: 7 × 3 = 21 units.

6. QuestionMultiple choice

A triangle has side lengths 7, 24, and 25. What type of triangle is it?

Please select an answer first.

Correct answer: B

The correct answer is A right triangle.

  1. Identify the geometry idea: Decide whether the question uses angles, triangles, similarity, transformations, coordinates, circles, measurement, or proof.
  2. Show the reasoning: Because 7 squared + 24 squared = 25 squared, the triangle is right by the converse of the Pythagorean theorem.
  3. Check the result: Review the diagram relationships, units, signs, and geometric definitions before choosing the answer.

Because 7 squared + 24 squared = 25 squared, the triangle is right by the converse of the Pythagorean theorem.

7. QuestionMultiple choice

What is the geometric mean relationship in a right triangle altitude theorem?

Please select an answer first.

Correct answer: C

The correct answer is The altitude to the hypotenuse can be the geometric mean of the two hypotenuse segments.

  1. Identify the geometry idea: Decide whether the question uses angles, triangles, similarity, transformations, coordinates, circles, measurement, or proof.
  2. Show the reasoning: For the altitude to the hypotenuse, h squared equals the product of the two hypotenuse segments.
  3. Check the result: Review the diagram relationships, units, signs, and geometric definitions before choosing the answer.

For the altitude to the hypotenuse, h squared equals the product of the two hypotenuse segments.

8. QuestionMultiple choice

A 10-foot ladder makes a 60^\\circ angle with the ground. Which expression gives the height reached on the wall?

Please select an answer first.

Correct answer: D

The correct answer is 10\sin 60^\\circ.

  1. Identify the geometry idea: Decide whether the question uses angles, triangles, similarity, transformations, coordinates, circles, measurement, or proof.
  2. Show the reasoning: The wall height is opposite the 60 degree angle and the ladder is the hypotenuse, so use sine.
  3. Check the result: Review the diagram relationships, units, signs, and geometric definitions before choosing the answer.

The wall height is opposite the 60 degree angle and the ladder is the hypotenuse, so use sine.

9. QuestionMultiple choice

Which condition is sufficient to prove two triangles similar by SAS?

Please select an answer first.

Correct answer: A

The correct answer is Two pairs of corresponding sides are proportional and the included angles are congruent.

  1. Identify the geometry idea: Decide whether the question uses angles, triangles, similarity, transformations, coordinates, circles, measurement, or proof.
  2. Show the reasoning: SAS similarity requires proportional corresponding sides around a congruent included angle.
  3. Check the result: Review the diagram relationships, units, signs, and geometric definitions before choosing the answer.

SAS similarity requires proportional corresponding sides around a congruent included angle.

10. QuestionMultiple choice

A right triangle has legs 9 and 12. What is the value of tan⁡θ\tan θ if the side opposite θ is 9?

Please select an answer first.

Correct answer: B

The correct answer is 34\frac{3}{4}.

  1. Identify the geometry idea: Decide whether the question uses angles, triangles, similarity, transformations, coordinates, circles, measurement, or proof.
  2. Show the reasoning: The adjacent leg is 12, so tan θ = 9/12 = 3/4.
  3. Check the result: Review the diagram relationships, units, signs, and geometric definitions before choosing the answer.

The adjacent leg is 12, so tan θ = 9/12 = 3/4.

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Frequently asked questions about Arkansas ATLAS Geometry EOC Practice Test

Which Geometry skills are covered?

The page covers angles, triangles, similarity, trigonometry, transformations, coordinates, circles, measurement, proofs, and modeling.

How many questions are included?

There are five practice sets with 10 questions each, for 50 questions in total. Each set can be completed separately.

Are these official ATLAS questions?

No. These are original supplemental practice questions. Check the latest Arkansas Department of Education information for official materials, standards, accommodations, and policies.