Find the area of the right angle triangle with hypotenuse 40 cm and one of the other 2 side 24 cm
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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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