Question

calcule a area do setor circular 6cm 40°

Answer 1

A = ( π.r² ÷ 360 ) × 40
A = ( 3,14 × 6² ÷ 360 ) × 40
A = 0,314 + 40
A = 12,56 cm² ← Área do setor circular.

Answer 2

Olá, bom dia ☺

Resolução:

$\\ A= \dfrac{a^{o}.\pi.r^{2}}{360}} \\ \\A= \dfrac{40^{o}.3,14.6^{2}}{360} \\ \\ A= \dfrac{40^{o}.3,14.6^{2}}{360} \\ \\A= \dfrac{4521,6}{360} \\ \\ A=12,56 \ cm^2$

Bons estudos :)