Unit 8 Test A

Find the approximate circumference of a circle with a radius of 15 inches.

Note: C = 3.14d

Find the exact area of a circle with a diameter of 36 meters.

Note: A = 𝜋r²

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

Identify a chord in the picture below.

Find the length of minor arc AB in circle P with a radius of 6 centimeters.

_{Use a calculator to round your answer to the nearest tenth of a cm.}

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

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

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

Note: a² + b² = c²

Find the area of the sector formed by the acute angle JLK.

_{Use a calculator to round to the nearest tenth of a foot.}

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

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

Note: Once you solve for x, you still need to find the length of KJ.

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

Note: Once you solve for x, you still need to find the measure of arc AB.