Find the Missing Angle of a TRIANGE

Front

What is the sum of the angles in a triangle?

Back

The sum of the angles in a triangle is always 180°.

Front

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

Back

It is a right triangle.

Front

What do you call a triangle with all angles less than 90°?

Back

It is called an acute triangle.

Front

What do you call a triangle with one angle greater than 90°?

Back

It is called an obtuse triangle.

Front

How do you find the missing angle in a triangle?

Back

Subtract the sum of the known angles from 180°.

Front

If two angles in a triangle are 50° and 60°, what is the measure of the third angle?

Back

The third angle is 70°.

Front

What is the measure of an angle that is complementary to 30°?

Back

The complementary angle is 60°.

Front

What is the measure of an angle that is supplementary to 120°?

Back

The supplementary angle is 60°.

Front

If a triangle has angles of 40° and 100°, what is the measure of the missing angle?

Back

The missing angle is 40°.

Front

In a triangle, if one angle is 80° and another is 50°, what is the missing angle?

Back

The missing angle is 50°.