Circle Quiz Review Guide

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What is the area of a circle if its diameter is 10 centimeters?

78.5 centimeters

What is the formula for the Area of a Circle?

A=πr2

The radius of a circle is 3 inches. What is the area?

Area = 28.26 in

The diameter of a circle is 8 centimeters. What is the area?

Area = 50.24 cm

The diameter of a circle is 12 inches. What is the area?

Area=113.04 in

The radius of a circle is 9 centimeters. What is the area?

Area=254.34 cm

The diameter of a bicycle wheel is 20 inches. What is the area of the wheel?

Area=314

The radius of a circular rug is 4 feet. What is the area?

Area=50.24 feet

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

Area== 28.27 m2

A line that links two points on a circle?

Chord (cord)

A_________________ is a part of a line that is bounded by two end points.

Line segment

The radius of a circle is 2 inches. What is the circumference?

circumference = 12.56 in

Find the circumference of a circle with a diameter of 7.5 inches.

circumference = 23.55

The diameter of a circle is 3 centimeters. What is the circumference?

circumference = 9.42 cm

The distance around a circle is called its

circumference.

If the radius of a circle is 15.3 centimeters, then what is the diameter?

d=30.6

The radius of a circle is 2 inches. What is the diameter?

diameter = 4 in

. The distance across a circle through its center is called its

diameter.

The __________ of a circle is the distance from the center of a circle to any point on the circle

radius

What is the diameter of a circle with radius of 7 inches?

the diameter of a circle is 14 inches


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