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8 May, 08:33

The two shorter sides of a right-angled triangle have lengths a and b. a is increased by 33% and b is decreased by 12%.

What is the percentage change in the area of the triangle?

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  1. 8 May, 10:55
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    Answer: 17.04% increase

    Step-by-step explanation:

    The area of a triangle is (ab) / 2

    The area of the new triangle is (1.33a) (0.88b) / 2

    = 1.1704ab/2

    = 17.04% increase
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