Question

two angles of a quadrilateral are 45°and 85° . the other angles are in ratio 5:8.find the remaining two angles

Answer 1

13x=230. x=230/13. so another angle is 1500/13&1840/13

Answer 2

I angle= 45 degree
2nd = 85 degree
3rd=5x
4th=8x
sum of all angles in a quadrilateral= 360 degree
hence, 45 +85+5x+8x = 360 degree
45+85= 130 degree
8x+5x= 13x
13x divide by 13x
10
3rd angle=10 multiply by 5x
=50 degree
2nd angle= 10 multiply by 8
=80 degree