Circles REVIEW

What is the radius of this circle?

• 18
• 10
• 9
• 8

Tags

CCSS.7.G.B.4

What is the circumference of a circle with a radius of 5 in terms of π ?

• 5 π square units
• 10 π square units
• 25 π square units
• 50 π square units

Tags

CCSS.7.G.B.4

what is the circumference of this circle ?

• 3.14 cm 
• 37.68 cm
• 24 cm
• 68.4 cm

Tags

CCSS.7.G.B.4

What is the formula for finding the area of a circle?

• A = π·d

• C = 2·π·r

• A = π·r²

• C = π·d

Tags

CCSS.7.G.B.4

find the area of the circle with radius 3 cm below.

• 100 cm²
• 225 cm²
• 9 cm²
• 28.26 cm²

Tags

CCSS.7.G.B.4

What is the area of this circle?

• 163.2 cm²

• 15.3 cm²

• 124.2 cm²

• 113.1 cm²

Find the length of the bold arc.

• 61.3ft
• 20.4ft
• 7351.3ft
• 22,068ft

Tags

CCSS.HSG.C.B.5

FIND THE ARC LENGTH OF THE BOLDED ARC

• A
• B
• C
• D

Tags

CCSS.HSG.C.B.5

Find the area of the shaded sector of circle O.  The radius is 6 inches and the central angle is 100°.  Express answer to the nearest tenth of a square inch.

• 9.2 sq. in.
• 10.5 sq. in.
• 31.4 sq. in.
• 38.2 sq. in.

Tags

CCSS.HSG.C.B.5

Find the area of each sector.

• 52.4 in²
• 18,864 in²
• 60 in2
• 10.47 in

Tags

CCSS.HSG.C.B.5