Question

Find the area of a right angled triangle whose hypotenuse is 13 cm and one of its sides containing the right angle is 12 cm. Find the length of the other side.

Answer 1

Let the other sides= x cm
(x) 2+(12)2= (13)2
(x) 2+144=169
(x) 2=25
x= 5 cm

Area of triangle= 1/2×12×5=30 cm2.

Answer 2

Step-by-step explanation:

13 square = 169

12 square = 144

169-144 =

$\sqrt{25} = 5$

so,

$\frac{1}{2} \times 12 \times 5$

we cancle 12 by 2 we get 6 we multiply 6 by 1 and then by 5 we get the are = 30cm2