n the figure, PM = 6 cm, MR = 8 cm and QR = 26 cm, find the length of PQ.
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(PR)²=(PM)²+(MR)²
PR²=6²+8²
PR²=36+64
PR²=100
PR=10 cm
(QR)²=(PR)²+(PQ)²
PQ²=QR²-PR²
PQ²=26²-10²
PQ²=676-100
PQ²=576
PQ=24 cm
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