Question

Find the surface area of a prism with a square base that is 5 cm by 5 cm and is 10 cm tall.
A. 250 cm2
B. 785 cm2
C. 250 cm3
D. 100 cm2

Answer 1

@k_lynn i am also stuck on this one, im not sure what they mean by prism with a square base so i dont know which formula to use.

Answer 2

Do you have a picture you can show me?

Answer 3

@k_lynn it does not come with a picture, thats why i am confused.

Answer 4

Surface Area = (Area of Base * 2) + (Lateral Area)

Answer 5

Area of Base would be the Area of a Square.
Area of a Square = S*S
(5*5)

Answer 6

SA=2*a^2+4*a*h
A= Base Edge (5cm)
H= Height (10cm)
SA=250

Answer 7

http://prntscr.com/6z7735
I'm assuming since the question says prism, it looks like this.

Answer 8

Lateral Area = The height of the prism * the perimeter of the base

Answer 9

So, Surface area= (25 * 2) + 103.08
SA= 50 +103.08
SA= 153.08
this is what i got but that isn't any of the choices:/

Answer 10

Height of the prism = 10
Perimeter of the Base = 5 + 5 + 5 + 5

Answer 11

I think what we're all trying to say is that when you find the surface area, you find the area of all the sides, and then add them together.

Answer 12

Tayler, follow me :)

Answer 13

Okay so the surface area is the sum of the areas of both bases, plus the Lateral Area

Answer 14

SA = (BA*2) + Lateral Area

Base Area = s*s
BA = 5*5 = 25

Lateral Area = Perimeter of base * The height of the prism
Perimeter of base = 5 + 5 + 5 + 5
Height of prism = 10

Answer 15

I think you can take it from here ;)

Answer 16

Sometimes it can help ALOT to draw it out on scrap paper

Answer 17

@lsDxMdmaddicThc thanks so much!:)

Answer 18

Thank you for learning and not just copying down an answer!

Answer 19

Glad I could help you! :)