Question

pls answer my question.........

Answer 1

Please refer the above photograph for the used process.
Hope this will be helping you!


KEY POINTS TO REMEMBER :-

☸️ Pythagoras Theorem :-

Pythagoras theorem states that the square of the Hypotenuse of the right triangle is equal to the sum of the square of the other two sides of the triangle.

So,
For a triangle PQR with Q=90 degrees

PR² =PQ² +QR²

Similarly, we can derive:-

PQ² = PR²-QR²
QR² =PR²-PQ²


Thanks!