Question

A rectangle is enlarged by a scale factor of 4. The original rectangle is 8.4 cm by 5.3 cm. What are the dimensions of the enlarged rectangle?

Answer 1

The length of the original rectangle is = 8.4 cm

The width of the original rectangle is = 5.3 cm

Now we have been given that, the rectangle is enlarged by a scale factor of 4 which means both the dimensions are multiplied by 4 times.

So, new length of the rectangle is = $8.4\times4=33.6$ cm

New width of the rectangle is = $5.3\times4=21.2$ cm

Hence, the dimensions of the enlarged rectangle are 33.6 cm by 21.2 cm.

Answer 2

8.4 × 4 = 33.6
5.3 × 4 = 21.2

33.6 cm by 21.2 cm