Question

the sides of a triangle are in the ratio 13:14:15 and it's perimeter is 84 cm find the area of the triangle​

Answer 1

Answer:

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Perimeter= sum of all sides

13x+14x+15x= 84

42x= 84

X= 84/42= 2

Hence the sides are 26cm, 28cm and 30cm

Area of triangle can be found by Herone's formula

s= 26+28+30/2= 42

√ 42× 16× 14× 12

= √112896

= 336cm⅔

Hope it is helpful

Answer 2

Answer:

2 ans

Step-by-step explanation:

let the no be x.

therefore, 13x +14x + 15x = 84

42x = 84

x = 84/42

x = 2 Ans.

answer in detail:

13x = 13× 2 = 26

14 x = 14 ×2 = 28

15x = 15 × 2= 30