Get Mystery Box with random crypto!

Good evening everyone There was a question in today's test | Abdulaziz '27🇺🇸 | Blog

Good evening everyone

There was a question in today's test that had a new idea which perhaps didn't come across any of you before.
And I would like to mention it


The question was

Given a unit circle with a center of G(0,0) and point F on the circle with coordinates (1,0) and point H (-1,y). Find the measure of angle FGH in radians.

Note:
Everyone had different correct choice; however, I'll post all possible correct choice with explanation

I hope everyone gets it correct


Best of luck

@kharezmi