Solving Angles of Triangle

Front

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

Back

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

Front

If one angle of a triangle is 90 degrees, what type of triangle is it?

Back

It is a right triangle.

Front

What is the formula to find the missing angle in a triangle?

Back

The formula is: Missing Angle = 180 - (Angle1 + Angle2).

Front

In a triangle, if two angles are equal, what type of triangle is it?

Back

It is an isosceles triangle.

Front

What is the measure of each angle in an equilateral triangle?

Back

Each angle in an equilateral triangle measures 60 degrees.

Front

How do you find the third angle if two angles are known?

Back

Subtract the sum of the two known angles from 180 degrees.

Front

What is the relationship between the angles in a triangle and its sides?

Back

In a triangle, the larger the angle, the longer the opposite side.

Front

If the angles of a triangle are 30 degrees and 60 degrees, what is the third angle?

Back

The third angle is 90 degrees.

Front

What is the exterior angle theorem?

Back

The exterior angle of a triangle is equal to the sum of the two opposite interior angles.

Front

If one angle of a triangle is 45 degrees and the other is 45 degrees, what is the third angle?

Back

The third angle is 90 degrees.