Triangle Properties and Area

Each lapel on a suit jacket is in the shape of a triangle. The tree angles of each triangle measure 47°. 68° and 65°. What type of triangle is this based on its angles?

A naval distress signal flag is in the shape of a triangle. The three sides of the triangle measure 5 feet, 9 feet, and 9 feet. Classify the triangle by its sides.

A triangle has one angle that measure 81° and one that measures 37°. What is the measure of the third angle?

A student is trying to construct triangles using four different sets of angles. The angles in each set are given below . Which set will form a triangle?

Determine if the side lengths given form a triangle.

** Hint: Put them in order from least to greatest.**

2 yd, 7 yd, 8yd

Determine if the side lengths given form a triangle.

** Hint: Put them in order from least to greatest.**

6m, 11m, 6m

Determine if the side lengths given form a triangle.

** Hint: Put them in order from least to greatest.**

3ft, 7ft, 13ft

Which of these lengths can represent the sides of a triangle?

A ceramic tile is cut in the shape of a triangle. The triangle has a height of 6 inches and an area of 33 square inches. What is the length of the base of the triangle?

A trapezoid has an area of 96 square feet. The bases are 9 feet and 15 feet. Write an equation to determine the height of of the trapezoid. Then determine the height.

What is the height of a parallelogram with base 12 meters and an area of 60 square meters?