GCSE(F),

The area of a rectangle is given by:

`A = bh`

where A is the area, *b* = base length and *h* is the height.

A rectangle that is 8 units along its base length, and 4 units high, has an area of 32 units square.

Note that the area units are squared: for example, a rectangle of 5 cm x 3 cm has an area of 15 cm^{2}

1. What is the area of a rectangle with a base length of 15.5 cm and a height of 4 cm?

Answer: 62 cm^{2}

Area = base x height = 15.5 x 4. Remember the answer is in cm^{2}

2. One side of a rectangular building is completely covered in glass. The area of the glass is 550 m^{2}. If the building is 55m long, how tall is the building?

Answer: 10m

Area = base x height

550 = 55 x *h*

*h* = 10

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