PARCC Geometry Practice Test 1

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1. Which of the following letters represents the vertex in the following picture?

Correct! Wrong!

1. E: The vertex is the point, formed by the two rays of an angle. Thus, H is the vertex of the angle.

2. If a circle has the diameter of 8, what is the circumference?

Correct! Wrong!

2. C: C=πd. Substituting 8 for d gives C=8π, where C is approximately 25.13.

3. What is the area of the triangle below?

Correct! Wrong!

3. B: The area of a triangle may be found by using the formula, A=1/2bh, where b represents the base and h represents the height. Thus, the area may be written as A=1/2(11)(6), or A = 33. The area of the triangle is 33 cm'.

4. What is the measure of the solid line angle depicted by the following figure?

Correct! Wrong!

4. D: The sum of the angles, formed by the perpendicular rays is 360°, thus the curved arrow represents an angle measure that is equal to the difference of 360° and 90°, or 270°.

5. What is the measure of angle B in the following figure if angle A measures 135°?

Correct! Wrong!

5. B: Since angles A and B are supplementary, the measure of angle B is equal to the difference of 180° and 135°, or 45°.

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