Circle Area

Find the area of the circle $A=\pi\cdot r^2\ \$  

• 43.96

• 153.86

• 87.82

• 307.72

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/are the formula(s) to find the area of a circle?

• A=πr²

• C=2πr

• A=√π

• A=πd

Tags

CCSS.7.G.B.4

What is the radius of this circle?

• 18
• 10
• 9
• 8

Tags

CCSS.7.G.B.4

What is the area of this circle?

• 8322.13
• 1134.11
• 4536.46
• 1267.09

Tags

CCSS.7.G.B.4

Jacob is painting a circular picture on his wall.  If the painting has a diameter of 4 ft, how much paint will he need to cover the inside of the circle?  Is this question asking you to find the area, circumference, or neither?

• area
• circumference
• neither

Tags

CCSS.7.G.B.4

A clock face has a diameter of 10 inches. What is the approximate area of the clock face in square inches?

• 314 in²
• 31.4 in²
• 7.85 in²
• 78.5 in²

Tags

CCSS.7.G.B.4

What number is pi?

• 1.41

• 3.00

• 3.14

• 5.14

Tags

CCSS.HSG.GMD.A.1

A area between/bounded by two radii of the circle and the arc where the radii meet the circle.

• triangle

• arc length of a circle

• sector of a circle

• segment of a circle

What is the area formula for a circle?

• A = πr²

• A = 2πr

• A = √π

Tags

CCSS.7.G.B.4