Question

find the area of the right angled triangle whose hypotenuse is 13cm long and one of its leg is 12cm long using geometry
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Answer 1

If one of it's leg is 12 cm then by phytagoras theorem other leg will be 5 cm

Now Area of triangle= 1/2×b×h

1/2×12×5

=30 cm square

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Answer 2

base by Pythagoras theorem is 5

area of triangle

$1 \div 2 \times base \times height$

the area is 30 cm^2