Unit 5 - Triangle Properties Review

Front

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

Back

180 degrees

Front

If one angle in a triangle is 70 degrees and another is 20 degrees, what is the third angle?

Back

90 degrees

Front

In triangle ABC, if angle A = 44 degrees and angle B = 68 degrees, what is angle C?

Back

68 degrees

Front

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

Back

Obtuse triangle

Front

What is the name of a triangle with all sides of different lengths?

Back

Scalene triangle

Front

In triangle PRQ, if angle P is the largest angle, what can you say about the lengths of the sides?

Back

Side opposite angle P is the longest.

Front

If two angles in a triangle are 40 degrees and 110 degrees, what is the third angle?

Back

30 degrees

Front

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

Back

One angle is 90 degrees, and the sum of the other two angles is 90 degrees.

Front

If the lengths of two sides of a triangle are 7 and 10, what is the range of possible lengths for the third side?

Back

The third side must be greater than 3 and less than 17.

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 * base * height