find the length of the hypotenuse of a right angled triangle if remaining side are 9 cm and 12 CM
grade 7
with full explanation
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Answer:
h*2 = b*2+p*2
h*2 = (12)*2+ (9)*2
h*2= 144+81
h*2 = 225
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In right angled triangle PQR
by using Pythagoras theorem,
PQ² + QR² = PR²
(9)² + (12)² = PR²
81 + 144 = PR²
225 = PR²
Taking square root on both sides
PR = 15 Cm
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