# Math Project

### Aerical Picture B of the Old Spill

1) Rectangle

2.5 cm x 15 m = 37.5 m

7 cm x 15 m = 105 m

37.5 m + 105 m = 142.5 m2

2) Rectangle

3 cm x 15 m = 45 m

2.9 cm x 15 m = 43.5 m

45 m + 43.5 m = 88.5 m2

3) Triangle

2.5 cm x 15 m = 37.5 m

4.9 cm x 15 m = 73.5 m

37.5 m + 73.5 m = 111 m

111 m / 2 = 55.5 m2

4) Rectangle

7.4 cm x 15 m = 111 m

2.2 cm x 15 m = 33 m

111 m + 33 m = 144 m2

5) Triangle

2.2 cm x 15 m = 33 m

3.5 cm x 15 m = 52.5 m

33 m + 52.5 m = 85.5 m

85.5 m / 2 = 42.75 m2

6) Rectangle

3.5 cm x 15 m = 52.5 m

3.2 cm x 15 m = 48 m

52.5 m + 48 m = 100.5 m2

7) Rectangle

1 cm  15 m = 15 m

3.5 cm x 15 m = 52.5 m

15 m + 52.5 m = 64.5 m2

8) Triangle

3.5 cm x 15 m = 52.5 m

3 cm x 15 m = 45 m

52.5 m + 45 m = 97.5 m

97.5 m / 2 = 48.75 m2

9) Triangle

2.5 cm x 15 m = 35.5 m

3 cm x 15 m = 45 m

35.5 m + 45 m = 80.5 m

80.5 m / 2 = 40.25 m2

10) Rectangle

4.5 cm x 15 m = 67.5 m

2 cm x 15 m = 30 m

67.5 m + 30 m = 97.5 m2

Total

142.5 m2 + 88.5 m2 + 55.5 m2 + 144 m2 + 42.75 m2 + 100.5 m2 + 64.5 m2 + 48.75 m2 + 40.25 m2 + 97.5 m2 = 824.74 m2

### Taking a second look at your sectioned polygons from your map, do you think your area is an exact measure of the space affected by the spill?

• I do think all of my areas is exact same. I think this because I measured all each shape by length and width. Then I Multiplied length x 15 miles for all of the shapes and do the same to Width x 15 miles for all of the shapes. If you have a triangle shape you in to do length x 15 miles and width x 15 miles, then you add them up to get the total, and then you divide the total divide by 2, and finally you get your answer of the triangle. This is why I do think all of my areas is exact same.

### How accurate do you think your polygons compare to the actual spill area? Do you expect your answer to be more or less than the actual spill area?

• I thought it would be less than the actual spill area. I thought its was less because I have less shape. Also I thought its was less by its looks on the Oil Spill Maps.