A path 3m wide surrounds a rectangular garden 15m wide and 18m long.What is the perimeter ?

So the rectangle formed by the path is 15+3+3 = 21 m by 18+3+3.

You should be able to take it from here. Check my thinking.

To find the perimeter of the path surrounding the rectangular garden, we need to add the lengths of all the sides.

Let's start by visualizing the problem. We have a rectangular garden with dimensions 15m (width) and 18m (length). And around the garden, there is a path that is 3m wide.

To find the perimeter, we need to consider the dimensions of both the garden and the path. Since the path surrounds the garden on all four sides, we can visualize it as adding 3m to each side of the garden.

If we add 3m to the width and length of the garden, the dimensions of the outer rectangle (including the path) become:

Width: 15m + 3m + 3m = 21m
Length: 18m + 3m + 3m = 24m

Now, we can find the perimeter by adding the lengths of all the sides:

Perimeter = 2 × (Width + Length)
Perimeter = 2 × (21m + 24m)
Perimeter = 2 × 45m
Perimeter = 90m

Therefore, the perimeter of the path surrounding the garden is 90 meters.