Question

The area of a rectangle is given as 8cm^2, correct to the nearest cm^2.

Answer 1

Answer:

3.5cm

Step-by-step explanation:

The area of a rectangle is the product of the length and width.

It was given that, the area of the rectangle is 8cm² to the nearest cm²

The width of the rectangle is given as 2 cm, correct to the nearest cm.

This means that:

$l \times 2 = 8$

Divide both sides by 2 to get:

$l = \frac{8}{2}$

$l = 4cm$

Since with was to the nearest cm, so is the length.

To find the lower bound we divide the level of accuracy by 2 and subtract from 4.

$lower \: bound = 4 - \frac{1}{2} = 3.5$

Therefore the lower bound for the width of the rectangle is 3.5cm