Question

Find the angles A and B of the parallelogram ABCD if

A = 4x - 15 and B = 5x - 3​

Answer 1

Answer:

the total sum of interior angkes in a parllelogram is 360°

and the opposite angles are equal.

so inthis problem angle A=angle C

and,angle B=angle D

so, according to the problem

4x-15+4x-15+5x-3+5x-3=360°

18x-36=360

18x=360-36

18x=324

x=324/18

=18

angle A=4x-15=4(18)-15=72-15=57

angle B=5x-3=5(18)-3=90-3=87

Step-by-step explanation:

if you are satisfied with my answer please mark me as brainlest answer

Answer 2

Answer:

adjacent sides are equal in a parallelogram

Step-by-step explanation:

4x-15+5x-3 = 9x-18

9x-18=180 = 198

9x=198

x= 198/9

= 22

22 x 4 - 15 = 73

5 x 22 - 15 = 107

hope it helped u