Circumference of Circles and Sectors

What is the area of the shaded region? Round to the nearest hundredth.

• 26

• 452.39

• 113.10

• 40715.04

Tags

CCSS.HSG.C.B.5

What is the distance marked off by L called?

• circumference

• tangent

• arc length

• sector

What is the green area called?

• sector

• segment

• arc

• section

If my radius is 10ft, what is my diameter?

• 20ft

• 5ft

• 31.4ft

• 62.8ft

Tags

CCSS.7.G.B.4

The homeowners association wants to enclose a circular playground in a fence. The need to find the amount of fencing they need to purchase.  Will they need the area or circumference of the playground?

• area

• circumference

• neither

Danielle wants to make a cookies for 3 friends. The radius of a cookie is 5 inches. If she wants to ice ALL 3 of the cookies, how many square inches of cookies must she cover with icing?

• 47.1 in²

• 235.5 in²

• 78.5 in²

• 15.7 in² 

Tags

CCSS.7.G.B.4

What is the area of the shaded sector?

• 40π/9 (13.96)

• 400π/9 (139.6)

• 80π/9 (27.9)

• 1600π/9 (558.5)

Tags

CCSS.HSG.C.B.5

What is the area of the shaded region?

• 50.27 units²

• 3015.93 units²

• 8.38 units²

• 4.19 units²

Tags

CCSS.HSG.C.B.5

In circle O, the radius is 4, and the measure of minor arc AB is 120 degrees. Find the length of minor arc AB to the nearest integer.

• 5

• 9

• 8

• 6

Tags

CCSS.HSG.C.B.5

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

• 7/4π

• 7/2π

• 1/8π

• 45π

Tags

CCSS.HSG.C.B.5