1)

a) 24 cm^{2}

b) 20 m^{2}

c) 12 cm^{2}

2) 36 cm^{2}

3) 45 cm^{2}

4)

a) 15 cm

b) 75 cm^{2}

**Working**

**Questions**

Answer all of the questions in this section without a calculator.

1) What are the areas of the following rectangles?

2) Find the area of the square below.

3)

*x*is 4 cm. What is the area of the rectangle below?4) The length of the shorter sides of a rectangle is 5 cm. The length of the longer sides of a rectangle is 3 times the length of the shorter sides.

a) What is the length of the longer sides?

b) What is the area of the rectangle?

a) What is the length of the longer sides?

b) What is the area of the rectangle?