The answer to number 3 is 66
the answer to number 4 is 61°
can i get brainliest
Ken=63
sis=75
ken=?+sis
63=?+57
minus 57 both sides
63-57=?+57-57
60+3-50-7=?+0
60-50+3-7=?
10-4=?
6=?
6 more stickers
the sum of all interior angles in a polygon is
180( n - 2)
n = number of sides
now, this polygon is a quadrilateral, so it has 4 sides, so it's total is just 180( 4 - 2) = 360.

ON/MN=NP/NQ
ON/12=15/20
ON=(12*15)/20
ON=9