Grade 7 Triangle Properties Worksheet

Grade 7 Triangle Properties

Read each question carefully and answer to the best of your ability. Show all your work for full credit.

1. What is the sum of the interior angles of any triangle?

2. A triangle with all three sides of different lengths is called a(n)   triangle.

3. An equilateral triangle has three   sides and three   angles.

4. A right triangle has one angle that measures exactly   degrees.

5. In a triangle, two angles measure 45° and 65°. What is the measure of the third angle?

6. Draw a triangle with side lengths of 3 cm, 4 cm, and 5 cm. What type of triangle is it?

7. An isosceles triangle always has three equal angles.

8. The longest side of a right triangle is called the hypotenuse.