Atriangle has a perimeter of 48 feet the second side is 15 feet longer than the first side the third side is 3 feet longer than twice the first side use the 5 d process to find each side

The length of the first side is 7.5 feet.

The length of the second side is 22.5 feet.

The length of the third side is 18 feet.

Step-by-step explanation:

The formula for determining the perimeter of a triangle is expressed as

a + b + c

Where a,b and c are the length of each sides of the triangle.

A triangle has a perimeter of 48 feet. It means that

a + b + c = 48 - - - - - - - - - - - - - - 1

The second side is 15 feet longer than the first side. It means that

b = a + 15

The third side is 3 feet longer than twice the first side. It means that

c = 2a + 3

Substituting b = a + 15 and c = 2a + 3 into equation 1, it becomes

a + a + 15 + 2a + 3 = 48

4a + 18 = 48

4a = 48 - 18 = 30

a = 30/4 = 7.5

b = a + 15 = 15 + 7.5

b = 22.5

c = 2a + 3 = 2 × 7.5 + 3

c = 18

step-by-step explanation: