angle sum property of a triangle

Front

What is the angle sum property of a triangle?

Back

The angle sum property states that the sum of the interior angles of a triangle is always 180°.

Front

If two angles of a triangle are 58° and 64°, what is the size of the third angle?

Back

The third angle can be found using the angle sum property: 180° - (58° + 64°) = 58°.

Front

What is the size of the missing angle if two angles are 95° and 45°?

Back

The missing angle is 180° - (95° + 45°) = 40°.

Front

How do you find the missing angle in a triangle?

Back

To find the missing angle, subtract the sum of the known angles from 180°.

Front

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

Back

In an equilateral triangle, each angle measures 60°.

Front

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

Back

In an isosceles triangle, the two equal angles can be found using the formula: (180° - base angle) / 2.

Front

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

Back

It is a right triangle.

Front

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

Back

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

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 a triangle has angles measuring 30° and 60°, what is the third angle?

Back

The third angle is 180° - (30° + 60°) = 90°.