**How I Found Out The Area Of My Sail**

Our job was to replicate the original sail which was a triangle. We first needed to find the measurements then actually draw another using these measurements. This then would make one sail. We had to record our workings and how much material would be needed. There are two ways to figure out the area for this task. The first way I went:

The method to find out the area of a triangle is to half the base times the height.

My first step was to measure the base and the height of the triangle

Base = 11.8cm

Height = 20.9cm

2) The next step was to halve 11.8cm.

11.8cm ➗ 2 = 5.9cm

3) Then I went half the base time the height (20.9cm x 5.9cm = 123.31 ㎠)

That then is the area of one triangle. To find out the area of both triangles I multiplied 123.21 by 2. That then equaled 246.62㎠. That is the area of both triangles, which also means we need 246.62㎠ of materials to make the sail.

The second way to find out how to find the area of the second triangle is:

Firstly, these triangles are half of a rectangle. This means we can make this triangle into a rectangle. For example:

That means we can multiply the base time the height. Which is 11.9cm x 20.9cm = 246.62㎠.

Therefore, the area of both triangles is 246.62㎠.

I would now need 246.62㎠ of materials to build my sail.

The last step was to draw my original shape. I went along 11.8cm for the base and then went up 20.9cm. With the diagonal length of the sail being 24cm I drew that line with a pencil then cut it out of the card. Then glued it on the other side of the original triangle so it was reflecting.