Circles Assessment

What is/are the formula(s) to find the area of a circle?

• πr²
• 2πr
• √π

Tags

CCSS.7.G.B.4

What is the formula for circumference of a circle? (distance around a circle)

• C = $\pi r^2$

• C = $\pi d$ or $2\pi r$

• C = $\pi r$

Tags

CCSS.7.G.B.4

The distance across the circle through the center is called the...

• radius
• diameter
• circumference
• area

The distance from the center of the circle to any point on the circle is called the...

• radius
• diameter
• circumference
• area

Find the area of the circle. Use 3.14 for π

• 43.96
• 153.86
• 87.82
• 307.72

Tags

CCSS.7.G.B.4

Find the area of the circle. Use 3.14 for π.

• 56.52 in²

• 254.34 in²

• 1017.36 in2

• 113.04 in²

Tags

CCSS.7.G.B.4

Find the circumference of a circle with

radius = 12 in. Use 3.14 for π.

• 24.12 in

• 37.74 in

• 754 in

• 75.36 in

Tags

CCSS.7.G.B.4

A cruise ship has a large, circular window. It has a diameter of 6 meters. What is the window's area?

• 31.25 m²

• 29.55 m²

• 30.36 m²

• 28.26 m²

Tags

CCSS.7.G.B.4

What is the circumference of a 12 inch (diameter) pizza?

• 37.68 inches
• 36.68 inches
• 35.68 inches
• 34.68 inches

Tags

CCSS.7.G.B.4

The diagram below shows the radius of the circular opening of a bowl. What is the approximate circumference of the opening in centimeters?

• 29.83

• 9.5

• 59.66

Tags

CCSS.7.G.B.4