Question

two angles of a quadrilateral are 65 and 55 if the measure of other two angles are in the ratio 5 is to 7 then find the measure of each angle

Answer 1

the measure od the tqo angles are 100 and 120 degrees

Answer 2

let the ratio be 5x and 7x
angle sum of a quadrilateral is 360 °
65°+55°+5x + 7x =360°
120 +12x = 360
12x =360 - 120
x = 240/ 12
x = 20

so ,
5x =5×20=100°
7x =7×20=140°