Question

a right angle triangle has largest side as 13 cm and one of the side containing the right angle as 12 CM then its area in centimetre square is

Answer 1

h=12cm
hypotenuse = 13 CM
$\frac{12 \times 13}{2} = 78$ CM sq

Answer 2

By Pythagoras theorem
the 3rd side=√(13^2-12^2)
=5cm
now, area=1/2 ×base ×height
=1/2×12 ×5
=30cm^2