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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

1. Test

Arkansas ATLAS Geometry EOC Practice Questions

A 10-question Arkansas ATLAS Geometry EOC practice set on angles, lines, and proof, 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

Two parallel lines are cut by a transversal. If one corresponding angle measures 68 degrees, what is the measure of the other corresponding angle?

Please select an answer first.

Correct answer: A

The correct answer is 68^\\circ.

  1. Identify the geometry idea: Decide whether the question uses angles, triangles, similarity, transformations, coordinates, circles, measurement, or proof.
  2. Show the reasoning: Corresponding angles formed by parallel lines are congruent, so the second angle also measures 68 degrees.
  3. Check the result: Review the diagram relationships, units, signs, and geometric definitions before choosing the answer.

Corresponding angles formed by parallel lines are congruent, so the second angle also measures 68 degrees.

2. QuestionMultiple choice

What is the measure of an angle supplementary to 47^\\circ?

Please select an answer first.

Correct answer: B

The correct answer is 133^\\circ.

  1. Identify the geometry idea: Decide whether the question uses angles, triangles, similarity, transformations, coordinates, circles, measurement, or proof.
  2. Show the reasoning: Supplementary angles sum to 180 degrees: 180 − 47 = 133 degrees.
  3. Check the result: Review the diagram relationships, units, signs, and geometric definitions before choosing the answer.

Supplementary angles sum to 180 degrees: 180 − 47 = 133 degrees.

3. QuestionMultiple choice

Two angles are vertical angles. One measures (3x + 10)^\\circ and the other measures (5x − 30)^\\circ. What is x?

Please select an answer first.

Correct answer: C

The correct answer is x=20x = 20.

  1. Identify the geometry idea: Decide whether the question uses angles, triangles, similarity, transformations, coordinates, circles, measurement, or proof.
  2. Show the reasoning: Vertical angles are equal, so 3x + 10 = 5x − 30. Solving gives x = 20.
  3. Check the result: Review the diagram relationships, units, signs, and geometric definitions before choosing the answer.

Vertical angles are equal, so 3x + 10 = 5x − 30. Solving gives x = 20.

4. QuestionMultiple choice

What is the converse of the statement “If two lines are parallel, alternate interior angles are congruent”?

Please select an answer first.

Correct answer: D

The correct answer is If alternate interior angles are congruent, then the lines are parallel.

  1. Identify the geometry idea: Decide whether the question uses angles, triangles, similarity, transformations, coordinates, circles, measurement, or proof.
  2. Show the reasoning: The converse switches the hypothesis and conclusion while keeping the relationship.
  3. Check the result: Review the diagram relationships, units, signs, and geometric definitions before choosing the answer.

The converse switches the hypothesis and conclusion while keeping the relationship.

5. QuestionMultiple choice

Which statement is sufficient to prove that two triangles are congruent?

Please select an answer first.

Correct answer: A

The correct answer is Three corresponding sides 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: Side-Side-Side, or SSS, is a valid triangle congruence criterion.
  3. Check the result: Review the diagram relationships, units, signs, and geometric definitions before choosing the answer.

Side-Side-Side, or SSS, is a valid triangle congruence criterion.

6. QuestionMultiple choice

If two angles of one triangle are congruent to two angles of another triangle, which conclusion is justified?

Please select an answer first.

Correct answer: B

The correct answer is The triangles are similar by AA.

  1. Identify the geometry idea: Decide whether the question uses angles, triangles, similarity, transformations, coordinates, circles, measurement, or proof.
  2. Show the reasoning: Two pairs of congruent angles establish similarity by the Angle-Angle criterion.
  3. Check the result: Review the diagram relationships, units, signs, and geometric definitions before choosing the answer.

Two pairs of congruent angles establish similarity by the Angle-Angle criterion.

7. QuestionMultiple choice

In a proof, what does a statement justified by a definition or theorem provide?

Please select an answer first.

Correct answer: C

The correct answer is A reason for why the statement follows.

  1. Identify the geometry idea: Decide whether the question uses angles, triangles, similarity, transformations, coordinates, circles, measurement, or proof.
  2. Show the reasoning: Reasons connect statements in a proof and show why each step is valid.
  3. Check the result: Review the diagram relationships, units, signs, and geometric definitions before choosing the answer.

Reasons connect statements in a proof and show why each step is valid.

8. QuestionMultiple choice

The exterior angle of a triangle measures 125^\\circ. One remote interior angle measures 52^\\circ. What is the other remote interior angle?

Please select an answer first.

Correct answer: D

The correct answer is 73^\\circ.

  1. Identify the geometry idea: Decide whether the question uses angles, triangles, similarity, transformations, coordinates, circles, measurement, or proof.
  2. Show the reasoning: An exterior angle equals the sum of the remote interior angles: 125 − 52 = 73 degrees.
  3. Check the result: Review the diagram relationships, units, signs, and geometric definitions before choosing the answer.

An exterior angle equals the sum of the remote interior angles: 125 − 52 = 73 degrees.

9. QuestionMultiple choice

A triangle has angles 2x^\\circ, (x + 10)^\\circ, and (3x − 10)^\\circ. What is x?

Please select an answer first.

Correct answer: A

The correct answer is x=30x = 30.

  1. Identify the geometry idea: Decide whether the question uses angles, triangles, similarity, transformations, coordinates, circles, measurement, or proof.
  2. Show the reasoning: The angles sum to 180: 2x + x + 10 + 3x − 10 = 180, so 6x = 180 and x = 30.
  3. Check the result: Review the diagram relationships, units, signs, and geometric definitions before choosing the answer.

The angles sum to 180: 2x + x + 10 + 3x − 10 = 180, so 6x = 180 and x = 30.

10. QuestionMultiple choice

Which reason justifies that the two base angles of an isosceles triangle are congruent?

Please select an answer first.

Correct answer: B

The correct answer is The Isosceles Triangle Theorem.

  1. Identify the geometry idea: Decide whether the question uses angles, triangles, similarity, transformations, coordinates, circles, measurement, or proof.
  2. Show the reasoning: The Isosceles Triangle Theorem states that angles opposite congruent sides are congruent.
  3. Check the result: Review the diagram relationships, units, signs, and geometric definitions before choosing the answer.

The Isosceles Triangle Theorem states that angles opposite congruent sides are congruent.

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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.