Question

In triangle PQR, if line PR = 3cm and QR = 2cm. Find the length of PQ.
Warning:- wrong answer and random letter answer will be reported.​

Answer 1

Given:

• PR = 3cm
• QR= 2cm

To find:

• Length of PQ

Solution :

PQR is a right angled triangle

Therefore, according to Pythagoras theorem;

Square of length of hypotenuse = Sum of squares of the other two sides

So,

c² = a² + b²

PQ² = PR² + QR²

PQ² = 3² + 2²

PQ² = 9 + 4

PQ² = 13

PQ = √13

>> Length of PQ = √13

Answer 2

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