Circle Geometry Concepts

Front

What are circles with exactly the same radius called?

Back

Congruent Circles

Front

What is the line segment between two points on the circle that passes through the center?

Back

Diameter

Front

What is the radius of the circle (x+7)²+(y-2)²=144?

Back

12

Front

What is the center and radius for the circle with the equation (x-4)²+(y+2)²=25?

Back

C:(4, -2), r=5

Front

In the equation (x-4)²+(y-3)²=25, what is the radius?

Back

5

Front

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

Back

Radius

Front

What do you call a line that touches a circle at exactly one point?

Back

Tangent

Front

What is the term for a line segment whose endpoints lie on the circle?

Back

Chord

Front

What is the area of a circle with a radius of 7?

Back

154 (Area = πr²)

Front

What is the circumference of a circle with a diameter of 10?

Back

31.4 (Circumference = πd)