Geometry Extra credit on final exam

Front

What is the Subtraction Property of Equality?

Back

If a = b, then a - c = b - c.

Front

If m∠1 = 30°, what is m∠3?

Back

m∠3 = 30°.

Front

Which property justifies the step: 4x = -8(0) to 4x = 0?

Back

Multiplicative Property of Zero.

Front

What is a chord that passes through the center of a circle called?

Back

Diameter.

Front

What is an arc with endpoints on the diameter?

Back

Semicircle.

Front

What is the definition of a radius?

Back

A line segment from the center of a circle to any point on the circle.

Front

What is the definition of a diameter?

Back

A chord that passes through the center of the circle, equal to twice the radius.

Front

What is the definition of a secant?

Back

A line that intersects a circle at two points.

Front

What is the definition of a tangent?

Back

A line that touches a circle at exactly one point.

Front

What is the definition of a minor arc?

Back

An arc that is smaller than a semicircle.