Q. 9 A5.0( 2 Votes )

# In ΔPQR, if m<spa

In ΔABC, we know that sum of all interior angles in triangle is equal to 180°

P + Q + R = 180

Also, given that, P + Q = R,

2R = 180

R = 90°

Using Pythagoras Theorem,

PQ2 = PR2 + QR2

PQ2 = 72 + (24)2

PQ2 = 49 + 576

PQ2 = 625

PQ = 25

Option (b) is correct.

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