Geometry MCAP Review

Front

What is the definition of congruence in geometry?

Back

Congruence in geometry means that two figures have the same shape and size, and can be superimposed on each other.

Front

What is the formula to find the midpoint of a line segment with endpoints (x1, y1) and (x2, y2)?

Back

Midpoint = ((x1 + x2)/2, (y1 + y2)/2)

Front

What is the measure of a straight angle?

Back

180 degrees.

Front

How do you calculate the area of a sector of a circle?

Back

Area of sector = (θ/360) * π * r², where θ is the central angle in degrees and r is the radius.

Front

What is the relationship between the central angle and the arc length in a circle?

Back

The arc length is directly proportional to the central angle; as the angle increases, the arc length increases.

Front

What is the definition of an arc in a circle?

Back

An arc is a portion of the circumference of a circle.

Front

What is the formula for the area of a circle?

Back

Area = π * r², where r is the radius of the circle.

Front

What is the definition of a radius in a circle?

Back

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

Front

What is the definition of a diameter in a circle?

Back

A diameter is a line segment that passes through the center of the circle and has its endpoints on the circle; it is twice the length of the radius.

Front

What is the definition of complementary angles?

Back

Complementary angles are two angles whose measures add up to 90 degrees.