Using Properties of a Rectangle

Front

What are the properties of angles in a rectangle?

Back

All angles in a rectangle are congruent and measure 90 degrees.

Front

What can be said about the sides of a rectangle?

Back

Opposite sides of a rectangle are congruent.

Front

What is the relationship between the diagonals of a rectangle?

Back

The diagonals of a rectangle are congruent.

Front

If one angle of a rectangle is 90 degrees, what can be said about the other angles?

Back

All other angles are also 90 degrees.

Front

What is the formula for the perimeter of a rectangle?

Back

Perimeter = 2(length + width).

Front

What is the formula for the area of a rectangle?

Back

Area = length × width.

Front

If the length of a rectangle is 5 cm and the width is 3 cm, what is the area?

Back

Area = 5 cm × 3 cm = 15 cm².

Front

If the length of a rectangle is 10 cm and the perimeter is 40 cm, what is the width?

Back

Width = (Perimeter/2) - Length = (40 cm/2) - 10 cm = 10 cm.

Front

Which statement is NOT always true about a rectangle?

Back

All sides are congruent.

Front

How do you find the length of the diagonal of a rectangle?

Back

Use the Pythagorean theorem: Diagonal = √(length² + width²).