∆pQR is a right angle at p if length of pq is 9 CM and pr = 12 CM then the length of qr is
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Answer:
QR = 15cm
Step-by-step explanation:
use pythagoras theorem
QR^2= 9^2 + 12^2
QR^2= 81 + 144
QR^2 = 225
QR = √225
QR = 15 cm
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