Question

13. Each of the two equal sides of a triangle are 4 m less than three times the third side.
Find the dimensions of the triangle, if its perimeter is 55 m.​

Answer 1

Step-by-step explanation:

let the third side be x

let the othe two equal sides be (3x-4)

Perimeter of the triangle=55m

So,

x+(3x-4)+(3x-4)=55m

7x-8=55m

7x=55+8

7x=63

x=63/7

x=9

Therefore..

x=9

3x-4=3×9-4

3x-4=23

Dimensions of triangle are 23m,23m,9m