Question

please solve this question​

Answer 1

Answer:

5 m

Step-by-step explanation:

A = $\pi$ r²

$A_{1}$ = 707 $\frac{1}{7}$ ( m² )

$r_{1} ^2$ = $\frac{4950}{7}$ ÷ $\frac{22}{7}$ = $\frac{4950}{22}$ = 225 

$r_{1}$ = 15 m

$A_{2}$ = 314 $\frac{2}{7}$ ( m² )

$r_{2} ^2$ = $\frac{2200}{7}$ ÷ $\frac{22}{7}$ = 100

$r_{2}$ = 10 m

$r_{1}$ - $r_{2}$ = 15 - 10 = 5 m