Log inSign up for FREE
Library

Unit 8 Practice A

Last updated over 1 year ago
10 questions
1

Find the approximate circumference of a circle with a radius of 10 inches.

Note: C = 3.14d

1

Find the exact area of a circle with a diameter of 15 meters.

Note: A = 𝜋r2

1

Give the most specific name for line AE in the picture below.

1

Identify a radius in the picture below.

1

Find the length of minor arc PQ in circle R with a diameter of 9 yards. Use a calculator to round your answer to the nearest tenth of a yard.

Note: Arc Length = (central angle/360) 𝜋d

1

Find the measure of arc JL and identify the arc as a major arc, minor arc, or semi-circle.

1

Determine whether segment AB is tangent to circle C. Give justification for your answer by showing your work.

Note: a2 + b2 = c2

1

Find the area of the sectors formed by the obtuse angle DFE.
Use a calculator to round to the nearest tenth.

Note: sector area = (central angle/360) 𝜋r2

1

Determine the length of AB. Show your work for full credit.

Note: Tangents are congruent.

1

Determine the measure of minor arc CB. Show your work for full credit.

Note: Arc AD is congruent to arc DB in the diagram. Once you solve for x, you still need to determine the measure of arc CB.