Circumference and Area of Circles

Front

What is the definition of a radius in a circle?

Back

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

Front

What is the definition of a diameter in 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 5 inches, what is the diameter?

Back

10 inches

Tags

CCSS.7.G.B.4

Front

What is the formula for the circumference of a circle?

Back

Tags

CCSS.7.G.B.4

Front

What is the formula for the area of a circle?

Back

Tags

CCSS.7.G.B.4

Front

If the diameter of a circle is 14 inches, what is the radius?

Back

7 inches

Tags

CCSS.7.G.B.4

Front

What is the relationship between radius and diameter?

Back

Tags

CCSS.7.G.B.4

Front

Calculate the circumference of a circle with a radius of 3 cm.

Back

Tags

CCSS.7.G.B.4

Front

Calculate the area of a circle with a radius of 4 cm.

Back

Tags

CCSS.7.G.B.4

Front

If a circle has an area of 50 cm², what is the radius?

Back

The radius is approximately 3.99 cm.

Tags

CCSS.7.G.B.4