Triangle/Quadrilateral Angle Properties and Measures

Front

The Sum of the Angles in a triangle must = _______

Back

180

Front

Which of the following could be angle measures for a triangle? A) 120°, 50°, 20° B) 100°, 200°, 60° C) 30°, 50°, 80° D) 40°, 50°, 90°

Back

D

Front

If 2 of the angles of a triangle are 30 and 70 degrees, the third angle measures...

Back

80

Front

A triangle's angles add up to...

Back

180 Degrees

Front

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

Back

60 degrees

Front

What is the measure of each angle in a right triangle?

Back

One angle is 90 degrees, the other two angles add up to 90 degrees.

Front

In a triangle, if one angle measures 90 degrees, what type of triangle is it?

Back

Right triangle

Front

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

Back

360 degrees

Front

If a quadrilateral has three angles measuring 90 degrees, what is the measure of the fourth angle?

Back

90 degrees

Front

What is the relationship between the angles of a triangle and the exterior angle?

Back

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