Question

WHAT IS THE ANSWER ?

Answer 1

Let the sides be 13x , 14x and 15x

Now According to the statement ,

=> 13x + 14x + 15x = 84

=> 42x = 84

=> x = 2

Now sides are as follows

13 × 2 = 26

14 × 2 =28

15 × 2 = 30

Now let's find its area

=> s = 26 + 28 + 30 /2

s = 84/2

s = 42

Now with heron's formula we get

=> √s( s - a )(s - b )( s - c )

=> √ 42(42-26)(42-28)(42-30)

=> √ 42 × 16 × 14 × 12

=> √11286

=> 336

Now let's find its height

= 1/2 × b × h = 336

= 1/2 × 30 × h = 336

= 15h = 336

= h = 336/15

= h = 22.4

Answer 2

i did not know the second question