Geometry A - Chapter 4 Review

Front

What is the sum of the interior angles of a triangle?

Back

The sum of the interior angles of a triangle is 180 degrees.

Front

Define corresponding sides in geometry.

Back

Corresponding sides are sides in two or more geometric figures that are in the same relative position.

Front

What is the definition of a base in a triangle?

Back

The base of a triangle is any one of its sides, often the side on which the triangle is considered to be standing.

Front

If one angle of a triangle measures 30 degrees, what is the measure of the other two angles if it is an isosceles triangle?

Back

The other two angles each measure 75 degrees.

Front

What is the relationship between the angles in a right triangle?

Back

In a right triangle, one angle measures 90 degrees, and the sum of the other two angles is 90 degrees.

Front

How do you find the measure of an unknown angle in a triangle?

Back

Subtract the sum of the known angles from 180 degrees.

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 * base * height.

Front

What is the definition of vertical angles?

Back

Vertical angles are the angles opposite each other when two lines intersect; they are always equal.

Front

If two angles are complementary, what is the sum of their measures?

Back

The sum of complementary angles is 90 degrees.

Front

What is the definition of an acute angle?

Back

An acute angle is an angle that measures less than 90 degrees.