M3 - Circles Unit Review Spring 2021

Front

This is a picture of ___________.

Back

Chord

Front

In the equation (x-3)²+(y-2)²=16, the center of the circle is...

Back

(3,2)

Front

Find x. If the tangent segments from a point outside the circle are equal, what is the value of x?

Back

2

Front

Solve for x in the equation of a circle. If the equation is (x-5)²+(y+1)²=25, what is x?

Back

10.58

Front

Find the length of BC if the radius is 7 and the distance from the center to point B is 14.

Back

14

Front

Define a chord in a circle.

Back

A chord is a line segment with both endpoints on the circle.

Front

What is the diameter of a circle?

Back

The diameter is a chord that passes through the center of the circle and is twice the length of the radius.

Front

What is the radius of a circle?

Back

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

Front

Define an inscribed angle.

Back

An inscribed angle is formed by two chords in a circle which have a common endpoint.

Front

What is the relationship between the inscribed angle and the arc it intercepts?

Back

The inscribed angle is half the measure of the intercepted arc.