Answer:
angle M = 18 degrees
angle N = 90 degrees
angle O = 72 degrees
Explanation:
angle N = 5M
angle M = M
angle O = 4M
180 = 5M + M + 4M (angle sum of a triangle)
180 = 10M
M = 18 degrees
sub M = 18 degrees into N = 5M
N = 5(18)
= 90 degrees
sub M = 18 degrees into O = 4M
O = 4(18)
= 72 degrees