7th Area of Circles #2

What is the area of the shaded portion of this circle?

• 8,399.5 sq. m.
• 13,677.84 sq, m.
• 5,278.34 sq, m.
• 1,962.5 sq, m

Circumference of a circle?

• 2 x π x d

• 3.14 r²

• r x 2 x π

• Pi x d²

_{Find the Circumference in terms of} π_.

• 5π in

• 10π in

• 25π in

• 2.5π in

Find the area of the circle. Use 3.14 or 22/7 for p.

• about 29,544.26 mm²

• about 609.16 mm²

• about 29,545.26 mm²

• about 7,386.07 mm²

Tags

CCSS.7.G.B.4

How do you find the area of a circle?

• $\pi d^2$

• $\pi r^2$

• $2\pi r$

• $2\pi^2$

Tags

CCSS.7.G.B.4

What is the diameter of this circle?

• 6 m

• 6 cm

• 24 cm

• 24 m

Tags

CCSS.7.G.B.4

A round breakfast table has a diameter of 5 meters. How much table cloth is needed to cover the entire table?

• 15.7 m

• 19.625 m

• 78.5

• 7.85 m

Tags

CCSS.7.G.B.4

A dog is tied to a fence post with a piece of rope that is 10 feet long. What is the area of the circle in which the dog can graze?

• 314 feet

• 31.4 feet

• 62.8 feet

• 15.7 feet

Tags

CCSS.7.G.B.4

Find the area if the diameter is 19.

• 90.25

• 283.385

• 59.66

• 29.83

Tags

CCSS.7.G.B.4

Alex has trained his puppy, Popper, to jump through a ring. According to Alex's measurements and calculations, the ring has a diameter of 3.5 feet. What is the ring's circumference (use 3.14 for pi)?

• 11.32 ft
• 12.25 ft
• 10.99 ft
• 8.75 ft

Tags

CCSS.7.G.B.4