Which equation can be used to find the measure of angle gfe?

cos−1 = θ

cos−1 = θ
sin−1 = θ
sin−1 = θ

the complete question is

Which equation can be used to find the measure of angle GFE?

cos−1[14.5/11.9 ]= θ

cos−1[11.9/14.5] = θ

sin−1[11.9/14.5] = θ

sin−1[14.5 /11.9]= θ

we know that

in the right triangle FGE

cos θ=adjacent side angle θ /hypotenuse

adjacent side angle θ=FE--------->

hypotenuse=FG-------->

so

cos θ=

θ=arc cos()

therefore

the answer is the option

cos−1[] = θ

45 degres

step-by-step explanation:

sorey if i hav bad engelish im bad engelish