Question

Need help with this ASAP pls​

Answer 1

190 in²

Explanation:

Surface Area of a rectangular prism/cuboid = 2 (lh +wh + lw ) Square units.

so, 2( 30 + 15 + 50 ) = 190 in²

hope this helps :))

Answer 2

190
`in^2`

Explanation:

To find the surface area of a rectangular prism as pictured so, a formula exists:

• 
  `SA=2(wl+hl+hw)`

where w = width, l = length, and h = height of the rectangular prism.

In order to solve this problem, those three variables are needed.

• The width is how wide the rectangular prism is, found to be 5 inches.
• The height is how tall the rectangular prism stands, which is 3 inches.
• The length is the length of the rectangular prism, calculated to be 10 inches.

Since we have these three values, we are able to plug it into the formula.

• 
  `SA=2(wl+hl+hw)`
• 
  `SA=2((5*10)+(3*10)+(5*3))`
• 
  `SA=2(50+30+15)`
• 
  `SA=2(95)\\`
• 
  `SA=190 in^2`