Question

The actual length of side y is 22cm. Use the scale drawing to find the length of side x.

Answer 1

Given:

The actual length of side y is 22cm.

To find:

The length of side x by using the scale drawing.

Solution:

We know that the corresponding sides of original figure and scale drawing are proportional.

$\dfrac{x}{1.8}=\dfrac{y}{1.4}$

$\dfrac{x}{1.8}=\dfrac{22}{1.4}$

$x=\dfrac{22}{1.4}\times 1.8$

$x\approx 28.286$

Therefore, the length of side x is about 28.286 cm.