Problema Solution
A rectangle is ( x+3) cm long and y cm wide. Find the expression and its perimeter.
Answer provided by our tutors
the perimeter of a rectangle is:
P = length +width + length + width
P = 2(length + width)
since length = (x + 3) cm and width = y cm we plug the values into the formula and get:
P = 2((x + 3) + y)
P = 2(x + 3 + y)
P = 2(x + y + 3)
P = (2x + 2y + 6) cm
the expression for the perimeter of the rectangle is P = (2x + 2y + 6) cm.