Question

In triangle PQR,PM is a median.If PM=26cm and QR=24cm then find PQsquare+PRsquare.​

Answer 1

Answer:

1640 cm

Step-by-step explanation:

PM = 26 cm

QM = MR = 12 cm

Triangle PMQ and PMR is right angled triangle

So, by pythagorus theorem,

PQ^2 = PM^2 +QM^2

PQ^2 = 26^2 +12^2 = 676 +144

820 cm.

similarly, PR^2 = 820 cm

so, PQ^2 + PR^2 = 1640 cm.