Question

I also need to complete this for hw :/ help?

Answer 1

the total surface area is 1120

Answer 2

Total Surface Area = 1120 yd squared

Explanation:

Surface Area = Total Area of each shape.

This prism is made from the following shapes

2 Triangles = 120 yd squared

3 Rectangles = 1000 yd squared

120 + 1000 = 1120 yd squared

- The Area of a Rectangle is L x W

- The Area of a Triangle is Base x Height / 2

OR 1/2 Base x Height

Let's start with your two Triangles:

8 x 15 = 120 | 120 ÷ 2 = 60 yd squared

60 yd squared is the Area of 1 Triangle you have two triangles, 60 yd squared x 2 = 120yd squared

Let's move onto the Rectangles:

1 Rectangle Area 25 x 15 = 375 yd squared

1 Rectangle Area 25 x 17 = 425 yd squared

1 Rectangle Area 25 x 8 = 200 yd squared

375 + 425 + 200 = 1000 yd squared