Question

please solve this question fast

Answer 1

1) Let PQ be 'a' units .

2) By Pythagoras theorem, PR = √(a^2+b^2)

3)Area of triangle = 1/2 * base * height

A = 1/2 * a * b.
A = 1/2 * PR * QN.

4)
Plug PR as mentioned above in above equations

5) Eliminate 'a' From two equations .

For Calculation :
See Attachment

Hope, you understand my answer.

Answer 2

hope this is the answer of this question