Answer:
perimeter of the triangle = addition of all sides.
perimeter = 3y + 1 + 4y + 2 + 7y
perimeter =3y + 4y +7y +1 + 2
perimeter = 14y + 3
answer = option a.
Answer:
a
Step-by-step explanation:
The perimeter is the sum of the 3 sides of the triangle, that is
perimeter = 3y + 1 + 4y + 2 + 7y ← collect like terms
= 14y + 3
