Circles Unit Review

Front

What is the measure of ∠PTQ if the total degrees in a circle is 360º?

Back

140°

Front

What is the distance from the center to any point on the circle?

Back

Radius

Front

Which segment represents the diameter of a circle?

Back

BD

Front

Solve for the missing angle if the options are 45º, 90º, 22.5º, 128º.

Back

45º

Front

What is the measure of angle DEF if the options are 72, 73, 74, 75?

Back

72

Front

What is the formula for the circumference of a circle?

Back

C = 2πr, where r is the radius.

Front

What is the area of a circle?

Back

A = πr², where r is the radius.

Front

What do you call a line segment that passes through the center of the circle and has endpoints on the circle?

Back

Diameter

Front

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

Back

Diameter = 2 × Radius.

Front

What is π (pi) approximately equal to?

Back

3.14