Question

Please solve the 3rd and 4th question.

Answer 1

hope it helps you.......

Answer 2

Ab=dc (given)
ca=bd(given)
bc=cb(common)

hence by sss congruence theorem triangleabc is congruent to triangle dcb

as it is squre sides will be equal and one angle will be of 90° hence according to sas congruen both triangles will be equal......