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In a right triangle, if one leg is 9 cm and hypotenuse is 15 cm, the other leg is
A11 cm
B12 cm
C13 cm
D10 cm
Answer & Solution
Correct answer: B. 12 cm
Pythagoras: sqrt(15^2 - 9^2) = sqrt(225 - 81) = sqrt(144) = 12 cm. Classic 9-12-15 triple (3x of 3-4-5).
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