Circle Area

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 the radius of this circle?

• 18
• 10
• 9
• 8

Tags

CCSS.7.G.B.4

What is the area of this circle?

• 50.27
• 78.23
• 98.12
• 201.06

Tags

CCSS.7.G.B.4

What is the formula to find the area of a circle?

• πr²

• 2πr

• √π

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

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 is the radius of the circle below?

• 3 cm

• 1.5 cm

• 6cm

• I don't know

Tags

CCSS.7.G.B.4