Question

Please help me:

Find the measure of a in parallelogram ABCD 

Answer 1

angle a = 122°

Explanation:

since the opposite angles in a parallelogram are equal, therefore,

Angle a = angle c

therefore,

14x -4 = 15x - 13

-4 +13 = 15x - 14x

x = 9

therefore angle a = 14 x 9 - 4 = 122°