Area of a circle

Front

What is the formula for finding the area of a circle?

Back

A = π·r²

Tags

CCSS.7.G.B.4

Front

What does 'r' represent in the formula A = π·r²?

Back

radius

Tags

CCSS.7.G.B.4

Front

What is circumference?

Back

The distance around a circle.

Front

If a circle has a diameter of 6 meters, what is its radius?

Back

3 meters

Tags

CCSS.7.G.B.4

Front

What is the area of a circle with a radius of 3 meters?

Back

28.26 m²

Tags

CCSS.7.G.B.4

Front

What is the relationship between diameter and radius?

Back

The diameter is twice the radius.

Tags

CCSS.7.G.B.4

Front

How do you calculate the circumference of a circle?

Back

C = π·d or C = 2·π·r

Tags

CCSS.7.G.B.4

Front

What is the area of a circle with a diameter of 10 meters?

Back

78.54 m²

Tags

CCSS.7.G.B.4

Front

What is the significance of π (pi) in circle calculations?

Back

π is a constant approximately equal to 3.14, used in formulas for circumference and area.

Tags

CCSS.HSG.GMD.A.1

Front

What is the area of a circle with a radius of 5 meters?

Back

78.54 m²

Tags

CCSS.7.G.B.4