Question

The base of a right triangle is 8 cm and hypotenuse is 10 cm. Its area will be (A) 24 cm2 (B) 40 cm2 (C) 48 cm2 (D) 80 cm2 How ???

Answer 1

A) 24

Explanation:

First you need to calculate the heigh which equals to one of the sides since it's a right triangle (c2)

h^2=c1^2+c2^2 --> 10^2=8^2+c2^2--> 10^2-8^2=c2^2 --> c2^2=36 --> c2=6

Now you can calculate the Area

A = (bxh(height)) /2 --> (8x6)/2 --> 24cm2