What is the area of a right triangle with the hypotenuse of 78cm and a leg of 72cm?

Answer 1

Area of right triangle = 1/2 x P x B or Half of product of two sides which are at right angle to each other(if we don't know which one is perpendicular or base).

One of the sides measures 72 cm and the other can be calculated by applying Pythagoras theorem.

Let the other side be x

And x2 = 782 - 722 = 900 (By Pythagoras theorem)

x = (900)1/2 = 30 cm

So the other side measures 30 cm.

Thus, Area of the triangle = 1/2 x 72 x 30 = 1080 cm2.