The hypotenuse of a right-angled triangle is 41 cm and one of the other two sides is 9 cm. What is the area of the triangle?
Correct answer B. 180 sq cm
Explanation
Third side = square root of (41 squared - 9 squared) = square root of 1600 = 40 cm. Area = 1/2 x 9 x 40 = 180 sq cm.
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