A pond is surrounded by a fence 1.5 m away from the pond on all sides. The pond is made of a rectangle (9m x 5.5m) and a semicircle. What is the perimeter of the fence?

Here's the solution to Activity 5:

5.1 Determine the perimeter of the fence.

Step 1: Determine the dimensions of the fenced area.
The pond consists of a rectangular part and a semicircular part.

• The rectangular part of the pond has a length of $9 \text{ m}$ and a width of $5.5 \text{ m}$.
• The fence is placed $1.5 \text{ m}$ away from the pond on all sides.

Let's calculate the dimensions of the outer fence:

• The total width of the fenced area (which will be the diameter of the fence's semicircle and the length of the straight vertical side) is the pond's width plus $1.5 \text{ m}$ on