Question

If ABCD is a trapezium in which AB DC, A = 57° and B = 48°, then find the
measures of C and D.

Answer 1

Answer:

angle D=123°

angle C=132°

Step-by-step explanation:

abcd is a trapezium

as ab is parallel to cd

a+d=180

and

b+c=180

by cointerior angles theorem (cointerior angles sum up to 180)

therefore angle d=180-57=123

and angle C=180-48=132