Question

solve the question fast​

Answer 1

Answer:

ABCD is a trapezium and A and B \textbf{are equal.}are equal.

\textbf{Also given that AB parallel to CD}Also given that AB parallel to CD

Means...

\textbf{C and D are also equal to each other}C and D are also equal to each other . \textbf{So, let them be x.}So, let them be x.

Now...

\textbf{\red{Area of trapezium}}Area of trapezium

\underline{\textbf{Sum of all sides}}

Sum of all sides

i.e.

/_A + /_B + /_C + /_D = 360°

45° + 45° + x + x = 360°

90° + 2x = 360°

2x = 360° - 90°

2x = 270°

x = 135°

As...

{angle\:C \:and\: angle\:D\: = \:x}angleCandangleD=x

So...

{angle\:C \:and \:angle\:D \:= \:135°}angleCandangleD=135°