The base of a right angled triangle is 12cm and its hypotenues is13 cm . Find the area of the triangle.

Answer 1

a^2 + 12^2 = 13^2
a^2 + 144 = 156
a^2 = 12
a = 3.46

A = (12 * 3.46)/2

Answer 2

Use the pythagorean theorem. x*x+12*12=13*13
x*x+144=169
x*x=25
x=5
5 is the side length of the remaining side.
to find the area of a right triangle you do base*height divided by two.
12*5=60
60/2=30
area=30