ABCD is a parallogram what is the size of angle a d = 51
Answers
Answer:
c119
is right answer.
hope you got it
Answer:
here ,
b = d and a = c (opposite angles of a parallelogram are equal)
so, b = 51°
the sum of all angle of a parallelogram = 360
a + b + c + d = 360
x + 51 + x +51 = 360
2x + 102 = 360
2x = 360 - 102
2x = 258
x = 258/2
x = 129
so, a = 129°
b = 51°
c = 129°
d = 51°
option d) is correct 129°