Triangles Test Review

Front

Do the segment lengths 15, 12, and 9 form a right triangle?

Back

Yes, they satisfy the Pythagorean theorem: 15^2 = 12^2 + 9^2.

Front

How many degrees is angle X if it measures 37 degrees?

Back

Angle X = 37 degrees.

Front

The Pythagorean Theorem ONLY works on which triangle?

Back

Right triangle.

Front

Find the measure of the missing angle D in a triangle where angles A, B, and C are known.

Back

Angle D can be found using the formula: D = 180 - (A + B + C).

Front

If a triangle has three acute angles, it is called:

Back

Acute triangle.

Front

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

Back

180 degrees.

Front

What type of triangle has one angle greater than 90 degrees?

Back

Obtuse triangle.

Front

What is an isosceles triangle?

Back

A triangle with at least two equal sides.

Front

What is a scalene triangle?

Back

A triangle with all sides of different lengths.

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 * base * height.