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?

Answer 1

they are all squared

Answer 2

whats the formula?

Answer 3

what kind of prism box? cylinder?triangle?

Answer 4

it just says prism

Answer 5

well its a guess trial and error with each shape

Answer 6

well ill take a box and try it

Answer 7

i got 202cm

i found a formula 2x Area of base + perimeter of base x 8

Answer 8

what is the formula for a right triangle?

Answer 9

prism

Answer 10

can you help me with this?

What is the surface area of the prism?



A.
138 yd2

B.
192 yd2

C.
264 yd2

D.
272 yd2
http://static.k12.com/calms_media/media/1422500_1423000/1422987/1/37d5308c403b03a44be0491b7c49a3b51e326cb0/MS_PA_131002_171346.jpg

Answer 11

base 7*3 =21 as given
3+7+3+7 =20perimeter as given
height =8 given so look at drawing
(8*3) two of them
(7*8) two of them
do you want to add top and bottom??

Answer 12

i guess

Answer 13

i dont know

Answer 14

80?

Answer 15

what i was on a right triangular prism

Answer 16

i asked a completly different question