The perimeter of the given triangle is 10y + 1 units.
What is a triangle ?
A triangle is formed by 3 non co-linear points it has three sides and three vertices.
A triangle is also a polygon with three sides.The sum of all the interior angles of a triangle is 180°.
In the given question
Equations of all the sides of the lengths of the triangle is given.
We know that the perimeter of a triangle is the sum of the lengths of all the sides.
∴ Perimeter of the given triangle
= (3y + 5) + (y - 4) + 6y
= 10y + 1 units.
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