Question

Find the perimeter of a triangle whose sides are 5x ,12x,13x respectively and area is 120cm2.

Answer 1

Answer:

60

Step-by-step explanation:

these are triplets of right angle ∆

1/2 * 5x * 12x = 120 => x^2 = 4 => x = 2

perimeter = 30x =30×2 = 60 cm