Question

11. In the adjoining figure, side CD and side AB have been produced to E and F respectively. Prove that a + b = x + y.​

Answer 1

Step-by-step explanation:

angle b =angle y(alternative angles)

angle a =angle x(alternative angles)

so,

• a+b=x+y
• a+b=atb(xa;y=b)
• hence, proved.

hope it will help you bro ☺️