Question

please solve it fast

Answer 1

as longest side =5k
shortest = 3k
other side=√ 25-9= 4k
perimeter= 12k = 36
k= 3

sides= 15, 9,12

area of triangle= 1/2 . base .height
= 1/2. 9.12
= 54

Answer 2

Perimeter = 36
Let
Base =3x
Longest side i. E hypotenuse =5x
third side=4x

As we know perimeter is Sum of all side
3x+5x+4x= 36
12x=36
x=3

Height =4*3=12
Base =3*3
=9
Height =5*3
15
Area of triangle =1/2*b*h
1/2*9*12
54


Hope so but still feeling something wrong