Question

Determine a area do setor circular com angulo central de 30° num circulo de 20cm de raio.

Answer 1

360 - pir²
30 - x
admita pi=3,14
x=30.3,14.0,2/360
x=0,05m

Answer 2

$3.14 \times {20}^{2} \times 30 = 37680 \ \\ \div 360$
$37680 \div 36 0= 104.6$