Question

The following figure shows a quadrilateral in which sides AB and DC are parallel.
If angle A : angle D =4:5, angle B=(3x-15)° and angle C =(4x+20)°, find each angle of the quadrilateral ABCD

Answer 1

Step-by-step explanation:

Let angle A be 4x

angle D be. 5x

4x+3x-15+4x+20+5x=360

16x+5=360

16x=360-5

x=355/16

x=22.2(approx.)

Hence a=4*22.2

=88.8degree

b=3*22.2-15

=.51.6degree

c=4*22.2+20

=108.8degree

d=5*22.2

=111degree

Answer 2

THE ANSWER IS IN THE ATTACHED PIC.

MARK ME AS BRAINIEST