Question

AYUDA PORFA..................

Answer 1

Usamos la fórmula

L = O × R

a)

$l = \frac{\pi}{7} \times 14 \\ l = 2\pi$

B)

$6\pi = \frac{\pi}{3} \times r \\ 18 = r$

C)

$40\pi = x \times 2 \\ 20\pi = x$