Question

Please I need help please!!!!!!!

Answer 1

B, θ=137,51°

Explanation:

`\alpha =(l)/(r)`

alpha are the angle in radian.

l= lenght of de arc=12cm

r=radius=5cm

`\alpha =(12)/(5) \\\\`

Converting the radian angle to degrees:

α--->θ

π--->180°

θ=(180°*α)/π

using the fact that: α=12/5

θ=(180°*12)/5

θ=432°/π

θ=137,5098°

θ=137,51°

Answer 2

1/3= 137.51 so b

Explanation: