Question

The figures are similar. find x. the ratio of the perimeters is 5:7​

Answer 1

Answer:

x = 16.8

Step-by-step explanation:

The ratio of corresponding sides is equivalent to the ratio of the perimeters.

Then using proportion

$\frac{12}{x}$ = $\frac{5}{7}$ ( cross- multiply )

5x = 84 ( divide both sides by 5 )

x = 16.8