Circumference and Area of Circles

Front

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

Back

Tags

CCSS.7.G.B.4

Front

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

Back

Tags

CCSS.7.G.B.4

Front

What does the term 'radius' mean in relation to a circle?

Back

The radius is the distance from the center of the circle to any point on its edge.

Front

What does the term 'diameter' mean in relation to a circle?

Back

The diameter is the distance across the circle through its center, equal to twice the radius.

Tags

CCSS.HSG.C.A.2

Front

If the radius of a circle is 7 cm, what is the area?

Back

Tags

CCSS.7.G.B.4

Front

If the diameter of a circle is 10 cm, what is the radius?

Back

The radius is 5 cm, since the radius is half of the diameter.

Tags

CCSS.7.G.B.4

Front

What is the relationship between the radius and diameter of a circle?

Back

Front

What is the circumference of a circle with a radius of 4 cm?

Back

Tags

CCSS.7.G.B.4

Front

What is a quarter section of a circle?

Back

A quarter section of a circle is one-fourth of the area of the circle.

Tags

CCSS.4.MD.C.5B

CCSS.HSG.CO.A.1

Front

If the area of a circle is 78.5 cm², what is the radius?

Back

Tags

CCSS.7.G.B.4