Question

4) Qual o valor, em radianos, do arco com 225o?
a) π/2
b) 3 π/4
c) 5 π/4
d) 6 π/5
e) 7 π/9

Answer 1

Boa Noite !!!

Resposta = C

$225^o\\\\\\\cfrac{180^o}{225^o} = \cfrac{\pi\ rad}{x\ rad} \\\\\\180x = 225\pi \\\\\\x = \cfrac{225}{180} \\\\\\x = \cfrac{5\pi }{4} \\\\\\Terceira\ alternativa\ esta\ correta$

Espero ter ajudado :-)

Att: LDC

Answer 2

Resposta:

Explicação passo a passo:

A letra C esta correta