Geometry Unit 5 Assessment

Front

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

Back

180 degrees.

Front

Define a right angle.

Back

An angle that measures exactly 90 degrees.

Front

What is the Pythagorean theorem?

Back

In a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides (a² + b² = c²).

Front

What do the letters in triangle ABC represent?

Back

The vertices of the triangle.

Front

How do you denote the length of a side in geometry?

Back

By using two letters that represent the endpoints of the side, such as AB.

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 * base * height.

Front

What is a complementary angle?

Back

Two angles that add up to 90 degrees.

Front

What is a supplementary angle?

Back

Two angles that add up to 180 degrees.

Front

Define congruent triangles.

Back

Triangles that are identical in shape and size, having equal corresponding sides and angles.

Front

What is the difference between a scalene triangle and an isosceles triangle?

Back

A scalene triangle has all sides of different lengths, while an isosceles triangle has at least two sides of equal length.