Question

The perimeter of
a of the triangle
is 45cm. The sides are in
the ratio 5:12: 13. Find the area of the triangle​

Answer 1

Answer:

let the common ratio be x

5x + 12x + 13x = 45

30x = 45

x = 45/30 == 9/6 == 3/2

= 0.15

thank you!!!

Answer 2

Step-by-step explanation:

solution = Perimeter of triangle = 45

= 5x + 12x +13x = 45

= 30x = 45

= x = 45/30

=x= 9/6

= x= 3/2

= x= 1.5

= 1 side = 5x = 5 × 1.5 =7.5

= 2 side = 12x = 12 × 1.5 = 18

= 3 side = 13x = 13 × 1.5 = 19.5

I write a formula and you solve himself

= Area of triangle or delta =

$\sqrt{side(side - a)(side - b)(side - c)}$

where side = (a + b+ c)/2