Geometry: Semester 1 Review

Front

What is the formula for the area of a rectangle?

Back

Area = length × width.

Front

What is the definition of a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.

Front

How do you find the length of a side in a right triangle using the Pythagorean theorem?

Back

a² + b² = c², where c is the hypotenuse.

Front

What is the distance formula between two points (x1, y1) and (x2, y2)?

Back

Distance = √((x2 - x1)² + (y2 - y1)²).

Front

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

Back

The sum of the interior angles of a triangle is always 180 degrees.

Front

What is the definition of a parallelogram?

Back

A parallelogram is a quadrilateral with opposite sides that are parallel and equal in length.

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 × base × height.

Front

What is the definition of complementary angles?

Back

Complementary angles are two angles whose sum is 90 degrees.

Front

What is the definition of supplementary angles?

Back

Supplementary angles are two angles whose sum is 180 degrees.

Front

How do you calculate the perimeter of a rectangle?

Back

Perimeter = 2 × (length + width).