Chapter 10 Review

Front

What is a radius?

Back

A segment whose endpoints are the center and any other point on the circle.

Front

What is the measure of angle HKI?

Back

73 degrees.

Front

What is a tangent?

Back

A line that intersects the circle at one point.

Front

How do you find the perimeter of a circle?

Back

The perimeter (circumference) can be found using the formula C = 2πr, where r is the radius.

Front

What is the value of x if x + 15 = 90?

Back

75.

Front

What is the definition of a chord in a circle?

Back

A segment whose endpoints are on the circle.

Front

What is the formula for the area of a circle?

Back

A = πr², where r is the radius.

Front

What is the relationship between the radius and diameter?

Back

The diameter is twice the length of the radius.

Front

What is the definition of a secant line?

Back

A line that intersects a circle at two points.

Front

What is the measure of a right angle?

Back

90 degrees.