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Formula for Area of Parallelogram

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Question

▫️Find the area of the right - angled 🔺^le with hypotenuse 40cm and one of the other two sides 24cm ?

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Solution

By Pythagoras theorem
hypo²=1st side²+2nd side²
40×40=24×24+2nd side²
1600=576+2nd side²
1600-576=2nd side²
1024=2nd side²
2nd side=32

area of triangle=1/2×base×height
=1/2×24×32
=384

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