Question

Each of the two equal sides of a triangle are 2m less than three times the third side. Find the dimensions of the triangle if its perimeter is 45m​

Answer 1

Step-by-step explanation:

let the third side be x m

first two equal sides= 2(3x-2)m

Perimeter of triangle= sum of all sides

45 = x+2(3x-2)

45= x+ 6x -4

45+4= 7x

49/7= x

7= x

third side= 7 m

equal sides = 7*3-2 m

= 21-2

= 19 m

sides of triangle are 7 , 19 and 19

to check whether answer is correct or not

add all the sides and check whether their sum is 45 or not

7+19+19

45

so answer is correct