Question

full question
trigonometry

Answer 1

Answer:

bro it is simple becase if u want to use trigonometry, the angle must be a right angled triangle..

so angle MON=90 degree

please follow me

Step-by-step explanation:

Answer 2

Answer:

angle n =90°

other angle we don't know

so, 180-90/2=90/2=45°

so the other two angles is 45°

Step-by-step explanation:

let we check

90°+45°+45°=180°