Question

Use a net to find the surface area of the rectangular prism 10ft 5ft 1ft

PLS HELP ME ☝️ 35
points! :(

Answer 1

Answer:r:

Surface Area: 130ft

Explanation:

Width: 5 ft

Height: 1 ft

Length: 10 ft

Formula: 2(wl+hl+hw)

2(1·10+5·10+5·1)=130

Answer 2

You need 130ft² of net to cover the surface area of the rectangular prism.

Explanation:

1. find smallest sides surface:

S1=ab

S1=5*1=5ft²

There are two sides so 2*5=10ft²

2. find middle sized sides surface:

S2=cb

S2=10*1=10ft²

There are two sides so 2*10=20ft²

3. find biggest sides surface:

S3=ca

S3=5*10=50ft²

There are two sides so 2*50=100ft²

4. Sum up all the sides:

S=2ab+2cb+2ac

S=10+20+100=130ft²