Sophie’s favorite play has a player standing 18 feet from one goal post and 21 feet from the other post. In the triangle formed by the posts and the player, what is the measure of the angle formed opposite the goal?

a. 43.4°
b. 46.6°
c. 57.9°
d. 75.5°

Question

Sophie’s favorite play has a player standing 18 feet from one goal post and 21 feet from the other post. In the triangle formed by the posts and the player, what is the measure of the angle formed opposite the goal?

a. 43.4°
b. 46.6°
c. 57.9°
d. 75.5°

warpedkitten · Answer

I did 
$$\frac{ 21^2+18^2-24^2 }{ 2*21*18 } = 75.52°$$

can anyone tell me if that's correct?

anonymous · Answer

@jim_thompson5910