Question

The area of the base of a prism is 21 cm2. The perimeter of the base is 20 cm. The height of the prism is 8 cm.



What is the surface area of the prism?
I got 202cm

Answer 1

@Legends @SimplyE

Answer 2

Alright i'm here

Answer 3

ok I got 202cm btw I have to leave my question and come back to type again

Answer 4

How did you get 202ft

Answer 5

cm is what i meant to say sorry

Answer 6

I did 2 times base of prism plus perimeter of the bas times height

Answer 7

Oh did you do 21 x 2 + 21 +8

Answer 8

20 for the perimeter

Answer 9

yes exept the last part I did 21 x 8

Answer 10

okay you have to 21 x 21 because it's squared

Answer 11

yes

Answer 12

you did it?

Answer 13

so what would the formula be

Answer 14

20 x 8, you don't need the base for surface area, that's what i was taught

Answer 15

really ok thanks

Answer 16

yep,do you have answer choices

Answer 17

no I wish its a enter in one

Answer 18

was i right ? i apologize if i was'nt

Answer 19

no I haven't entered it in yet I have 4 more