Answer:
19 ft, 24 ft and 38 ft are the lengths of triangle.
Step-by-step explanation:
Let the length of second side be x.
Now given:
Given: Length of first side is 2 times length of second side = 2x
Given:Length of third side is 5 ft longer than the second side = 5+x
Perimeter of triangle = 81 ft.
Need to Calculate length of each side.
Now we know that sum of all three sides of triangle is equal to perimeter of triangle.
Hence,
[tex]x+2x+5+x =81\\4x= 81-5\\4x=76\\x=19 ft[/tex]
Also,
2x= 2×19 =38 ft.
5+x = 5+19 =24 ft.
Hence,
Length of first side = 38 ft.
Length of second side = 19 ft.
Length of third side =24 ft.
