Circles - area

If the area of circle is 100 π , find the radius of the circle.

• 10 π
• 10
• 50
• 50 π

Tags

CCSS.7.G.B.4

What is the area of this circle?

• 163.2
• 15.3
• 124.2
• 113.04

Tags

CCSS.7.G.B.4

What is the area of this circle?
d = 8cm

• 16π
• 8π
• 4π
• 36π

Tags

CCSS.7.G.B.4

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

• πr²
• 2πr
• √π

Tags

CCSS.7.G.B.4

What does area mean?

• the distance around a shape
• half the distance around a shape
• the amount of space outside a shape
• the amount of space inside a shape