Circles Area Composite Figures

What is the diameter?

• 8

• 16

• 10

• 4

Tags

CCSS.7.G.B.4

What equation would you use to solve for area of this circle? 

• 3.14 x 8

• 3.14 x 8 x 8 

• 3.14 x 4 x 4

Tags

CCSS.7.G.B.4

What equation would be used to find the area? 

• = 3.14 x 5

• = 3.14 x 10

• = 3.14 x 5 x 5  

Tags

CCSS.7.G.B.4

Jeff drew a circle inside a square, as shown below.  Which method can Jeff use to find the area of the square not covered by the circle?

• Subtract the area of the circle from the area of the square.

• Subtract the area of the square from the area of the circle.

• Subtract 1/4 the area of the square from the area of the circle.

• Subtract 1/4 the area of the circle from the area of the square.

Tags

CCSS.3.MD.C.7D

What is the area of a circle with the diameter of 10cm ?

• 66cm

• 78.5cm

• 66.5cm

• 10m

Tags

CCSS.7.G.B.4

Find the circumference (to the nearest whole number)

• 88 in

• 44 in

• 116 square in

• None of the above

Tags

CCSS.7.G.B.4

What is the circumference?

• 48

• 96

• 24

• 18

Tags

CCSS.7.G.B.4

A circular swimming pool is 21 feet in diameter.
How many feet around is the pool?

• 10.5 ft

• 42 ft

• 65.94 ft

• 131.95 ft

Tags

CCSS.7.G.B.4

The figure is made up of a square and a circle. The area of the square is 81 cm2 . Find the area of the circle. (Take π = 3.14.)

• 63.855 cm²

• 63.585 cm²

• 17.415 cm²

• 144.585 cm²

Tags

CCSS.7.G.B.4

The figure is made up of a circle, with centre A, and two identical right-angled triangles. The radius of the circle is 10 cm. Find the area of the shaded part of the figure. (Take π = 3.14.)