10. In SABC, 2BCA is a right angle, if Q is the mid point
of the side BC, AC-4 cm and AQ = 5 cm, find (ABY
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by Pythagoras Theorem
AQ^2 = QC^2 + AC^2
= 5^2 = QC^2 + 4^2
= 25 = QC^2 +16
= 25 = 9 +16
= QC^2 = 3^2
= QC = 3
SO BC = 3×2 = 6
By Pythagoras theorem
AB^2 = BC^2 + AC^2
= AB^2 = 6^2 + 4^2
AB^2 = 36+16
= AB ^2 = 52
Hope it hy
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