Area of Circles

Front

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

Back

The formula to find the area of a circle is πr², where r is the radius.

Tags

CCSS.7.G.B.4

Front

What does area mean?

Back

Area refers to the amount of space inside a shape.

Front

What is the area of a semicircle with a diameter of 8 cm?

Back

The area of the semicircle is 25.12 cm².

Tags

CCSS.7.G.B.4

Front

What is the area of a circle with a diameter of 8 cm?

Back

The area of the circle is 16π.

Tags

CCSS.7.G.B.4

Front

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

Back

The area of the circle is 28.26 cm².

Tags

CCSS.7.G.B.4

Front

What is the relationship between diameter and radius?

Back

The radius is half of the diameter.

Tags

CCSS.7.G.B.4

Front

How do you convert diameter to radius?

Back

To convert diameter to radius, divide the diameter by 2.

Tags

CCSS.7.G.B.4

Front

What is the value of π (pi)?

Back

π (pi) is approximately 3.14.

Tags

CCSS.HSG.GMD.A.1

Front

If the radius of a circle is 5 cm, what is the area?

Back

The area is 25π cm².

Tags

CCSS.7.G.B.4

Front

What is the area of a circle with a radius of 7 cm?

Back

The area is 49π cm².

Tags

CCSS.7.G.B.4