Question

in a quadrilateral ABCD AB llDC if angle A :,angle D is 2:3 and andle B:angle C7:8.measure each angle

Answer 1

angle a =180÷5×2=72

angle d =180÷5×3=108
angle b =180÷15×7=84
angle c =180÷15×8=96

Answer 2

Let the A be 2x and D be 3x
a+d is 180
2x+3x =180
5x =180
x=180/5
x=36
A is 2*36=72
D is 3*36=108
let b is 7x and c is 8x
apply the same formula.