Circles, Triangles and Quadrilaterals

What number is pi?

• 3.41

• 3.15

• 3.14

• 5.14

Tags

CCSS.HSG.GMD.A.1

What is the area formula for a circle?

• A = πr²

• A = 2πr

• A=πd

Tags

CCSS.7.G.B.4

Find the area of the circle below.

• 8.76 cm²

• 18.52 cm²

• 21.90 cm²

• 28.26 cm²

Tags

CCSS.7.G.B.4

Find the area of the circle. When a number is written next to the center of the circle, it represents the diameter length. The diameter is 18 in.

• 56.52 in²

• 254.34 in²

• 1017.36 in²

• 113.04 in²

Tags

CCSS.7.G.B.4

What is the radius of a circle with an area of 153.86 m?

• 49m

• 10m

• 7m

• 14m

Tags

CCSS.7.G.B.4

Determine the radius of the penny

• 59.66 mm
• 9.5 mm
• 38 mm
• 119.32 mm

Tags

CCSS.7.G.B.4

What is the radius of a circle?

• halfway through a circle

• a line through the center of a circle

• the amount of space inside of the circle

• the distance around a circle

What is the area of a circle?

• halfway through a circle

• a line through the center of a circle

• the amount of space inside of the circle

• the distance around a circle

Marisa purchases a pot for her father's garden. The diameter of the bottom of the pot is 18 cm. What is the radius of the pot's bottom?

• 3.14

• 18 cm

• 9 cm

• 36 cm

Tags

CCSS.7.G.B.4

What is a good explanation of the relationship between the radius and diameter?

• The diameter is half of the radius

• The radius is half of the diamter

• The circumference is 3.14 times the diameter

Tags

CCSS.7.G.B.4