Area of Polygons Circumference of Circles

Find the area of the shaded region using the formulas.

• (4 x 8) + (3.14 x 1²)

• (3.14 x 1²) - (4 x 8)

• (4 x 8) - (3.14 x 2²)

• (4 x 8) - (3.14 x 1²)

You have two circles. Each circle has a diameter of 8. What is the total area of the two circles?

• 50.24

• 100.48

• 200.96

• 401.92

Tags

CCSS.7.G.B.4

You buy a pizza. The diameter of the pizza is 16 Inches. You only eat half of the pizza. how many square inches of pizza did you eat?

• 200.96

• 100.48

• 48

• 24

Tags

CCSS.7.G.B.4

You want to put fencing around the edge of a garden. The circular garden has a radius of 6 feet. How long will your fence be?

• 18.84

• 113.04

• 37.68

• 56.52

Tags

CCSS.7.G.B.4

Find the composite area.

• 6.28

• 24

• 40

• 38.28

Find the composite area.

• 72.12

• 146.24

• 96

• 121.12

A circular fountain has a drain in the center. The distance from the drain to the edge of the fountain is 3 feet. What is the approximate circumference of the fountain?

• 6 feet

• 9 feet

• 15 feet

• 18 feet

Tags

CCSS.7.G.B.4

A semicircle opening above the entrance at Six Flags has a diameter of 15 feet.  What is the area of this opening?  Round to the nearest tenth.

• 706.5 square feet

• 47.1 square feet

• 88.3 square feet

• 176.6 square feet

Tags

CCSS.7.G.B.4

The Cruz family is buying a custom-made cover for their swimming pool, shown above. The cover costs $2.95 per square foot. How much will the cover cost? Round to the nearest cent.

• $422.10

• $551.63

• $1,627.29

• $1,106.25

what is the circumference of this circle ?

• 3.14 cm 

• 37.68 cm

• 24 cm

• 68.4 cm

Tags

CCSS.7.G.B.4