Perimeter of a Trapezoid: Calculate The Missing Side based on the formula

The perimeter of the trapezoid in the diagram is 25 cm. Calculate the missing side.

$3$ cm

What is the length of side AD given that the perimeter of the trapezoid is equal to 42 cm?

9

The perimeter of the trapezoid below is 30 cm. Calculate the length of the missing side.

6 cm

Given an isosceles trapezoid whose perimeter 3X

Find the length of the short base

$2\frac{1}{3}x-12$

Below is an isosceles trapezoid with a perimeter of 4X+2Y.

Calculate the lengths of the missing sides.

Y

The area of the isosceles trapezoid below is 43 cm².

How long are the missing sides?

$3$ cm

The perimeter of the trapezoid in the drawing is 34 cm. What is the length of the missing base?

This trapeze is not possible.

The perimeter of a trapezoid is 3 times the length of its long base. Work out the length of the missing side.

9

Calculate the length of the second base given that the perimeter of the trapezoid in the drawing is 300% of the length of the base.

14