Question

A triangle is such that the first side is twice the length of the second side.the third side is 4m long.if the perimeter of the triangle is 13m,find the length of the first and second side

Answer 1

Answer:

Here's your answer

Step-by-step explanation:

Triangle

Let one side of triangle be x

the other side is 2x

the third side is 4cm.

Perimeter of triangle is sum of all the sides

So,

x+2x+4=13

3x+4=13

3x=13-4

3x=9

x=9÷3

x=3

Therefore one side is 3cm

other side is 2x=2×3=6cm