Circles

What is the radius of the circle?

• 180 cm

• 90 cm

• 100 cm

• 45 cm

Tags

CCSS.HSG.CO.A.1

CCSS.HSG.GMD.A.1

CCSS.HSG.GPE.A.1

What is the circumference of the circle? Write your answer using π.

• 5πr

• πr

• 10πr

• r

Tags

CCSS.HSG.GMD.A.1

The diameter of a circle is 10 yards. Find the approximate circumference of the circle, using 3.14 for π.

• 31.4 yards

• 28.5 yards

• 32.5 yards

• 30.0 yards

Tags

CCSS.HSG.GMD.A.1

The radius of a circle is 15 inches. What is the circumference of the circle? Write your answer using π.

• 30π inches

• 45π inches

• 60π inches

• 75π inches

Tags

CCSS.HSG.GMD.A.1

The diameter of a circle is 24 feet. What is the approximate circumference of the circle? Use 3.14 for π.

• 75.36 feet

• 72 feet

• 80 feet

• 70.68 feet

Tags

CCSS.HSG.GMD.A.1

What is the approximate circumference of a circle with a diameter of 48 millimeters?

• 150.72 millimeters

• 144 millimeters

• 120.48 millimeters

• 160 millimeters

Tags

CCSS.HSG.GMD.A.1

What is the circumference of a circle with a radius of 64 inches? Write your answer using π.

• 128π inches

• 256π inches

• 64π inches

• 32π inches

Tags

CCSS.HSG.GMD.A.1

A circle has a circumference of 200π feet. What is the radius of the circle?

• 50 feet

• 100 feet

• 200 feet

• 25 feet

Tags

CCSS.HSG.GMD.A.1

Some answers use 3.14 for π, and some answers use the symbol π in the solution. Which type of answer is more accurate?

• Using 3.14 for π is more accurate.

• Using the symbol π is more accurate.

• Both are equally accurate.

• Neither is accurate.

Radius (a)   . The diameter is 16 feet. The area is (b)   .

• 8 feet

• 200.96

• 16 feet 

• 64 feet 

Tags

CCSS.HSG.GMD.A.1