Arc Length and Area of Sectors - Practice Version

What is/are the formula(s) to find the area of a circle?

• $πr^{2\ }$

• $2πr$

• $\sqrt{\pi}$

• $\pi d$

What is/are the formula(s) to find the circumference of a circle?

• $πr^{2\ }$

• $2πr$

• $\sqrt{\pi}$

• $\pi d$

What is the area of this semicircle with a diameter of 8 cm?

• 8π cm²

• 4π cm²

• 16π cm²

• 64π cm²

The distance along an arc measured in linear units.

• area of a sector
• arc length
• arc of a circle
• sector of a circle

Tags

CCSS.HSF.TF.A.1

CCSS.HSG.C.B.5

In circle O, the radius is 4, and the measure of minor arc AB is  $120\degree$ . Find the exact length of minor arc AB.

•  $8π$  

•  $4π$  

•  $\frac{8π}{3}$  

•  $\frac{16π}{3}$  

What is the area of the shaded sector?

• 108π in²

• 36π in²

• 144π in²

• 24π in²

A region bounded by two radii of the circle and their intercepted arc is a ....

• arc of a circle
• arc length of a circle
• sector of a circle
• segment of a circle

Tags

CCSS.HSG.C.B.5

What is the exact area of this circle?

• 1444π cm²

• 361π cm²

• 38π cm²

• 76π cm²

What is the distance around a circle?

• Circumference
• Area
• Diameter
• Radius

Tags

CCSS.HSG.GMD.A.1

Find the arc length. Leave your answer in terms of π.

• $\frac{7\pi}{4}cm$

• $\frac{7π}{2}cm$

• $\frac{1\pi}{8}cm$

• $45π\ cm$