Question

What is the surface area of this rectangular prism?



A.
198 m2

B.
81 m2

C.
99 m2

D.
162 m2

Answer 1

https://static.k12.com/calms_media/media/395500_396000/395730/2/17f35d6a0c1429abfbab33679c1d81e97fe4491e/53269_question.jpg

Answer 2

i need help somebody plz :/

Answer 3

@MARC_

Answer 4

@ganeshie8

Answer 5

@Nerdsarecool

Answer 6

see attached

Answer 7

Surface Area of a Rectangular Prism = 2ab + 2bc + 2ac
(a, b, and c are the lengths of the 3 sides)

In words, the surface area of a rectangular prism is the area of the six rectangles that cover it. But we don't have to figure out all six because we know that the top and bottom are the same, the front and back are the same, and the left and right sides are the same.

The area of the top and bottom (side lengths a and c) = a*c. Since there are two of them, you get 2ac. The front and back have side lengths of b and c. The area of one of them is b*c, and there are two of them, so the surface area of those two is 2bc. The left and right side have side lengths of a and b, so the surface area of one of them is a*b. Again, there are two of them, so their combined surface area is 2ab.

Answer 8

so is it 162 not sure ?

Answer 9

im not sure tho??

Answer 10

SA = 2*(LW + WH + LH)

L = 9
W = 6
H = 3


SA = 2*(LW + WH + LH)

SA = 2*(9*6 + 6*3 + 9*3)

SA = ???

Answer 11

based on @jim_thompson5910 working\[SA=2(54+18+27)\]\[SA=?\]solve it @litzyceron

Answer 12

99

Answer 13

don't forget to multiply it by 2

Answer 14

\[SA=2(99)\]\[SA=?\]

Answer 15

so its a 198

Answer 16

yep, 198

Answer 17

yes,it is :)

Answer 18

ok thank you all for helping me @MARC_ & @jim_thompson5910

Answer 19

no problem

Answer 20

i have one more question ?

Answer 21

go ahead

Answer 22

What is the surface area of this prism?



A.
3312 m2

B.
3240 m2

C.
6480 m2

D.
1656 m2

Answer 23

you'll need to post the pic of it

Answer 24

hold on

Answer 25

https://static.k12.com/calms_media/media/395500_396000/395737/3/1dcaacc5cccf19011d077d3f13398b933329de72/53273_question.jpg

Answer 26

what is the area of each triangle?

hint: A = b*h/2

Answer 27

108 for the first one and the second one is 37.5 ?

Answer 28

both triangles are congruent, so each one is 108

Answer 29

ohhhh ok

Answer 30

the side panels are rectangles with length 30 and width 15

there are 3 side panels

Answer 31

actually hold on

Answer 32

ok

Answer 33

the two top side panels are rectangles with length 30 and width 15

the bottom rectangle is a rectangle with length 30 and width 18

Answer 34

ok

Answer 35

???