Question

What is the lateral area of the rectangular prism?

Assume the prism is resting on its base.













A.

504 in2








B.

396 in2








C.

312 in2








D.

90 in2

Answer 1

@eric_d

Answer 2

there are 6 faces altogether
2 with dimensions 12*6
2 ... 12*7
2 ... 6*7

Answer 3

so wat exactly do i do with that

Answer 4

work out the area of each face
for example: area of first 2 faces:- each one has area 12 times 6 = 72 Total 144

now do the same for the other 4 faces and add up all 6 areas to get total surface area

Answer 5

i did it is the answer A.

Answer 6

no i want the lateral area

Answer 7

OK sorry - i got confused - I misread the question
what do you mean exactly by the lateral area?

Answer 8

The lateral area is the surface area of a 3D figure, but excluding the area of any bases.

Answer 9

right - so it includes the four vertical faces only ?

Answer 10

in which case the area is 2*12*6 + 2*12*7

Answer 11

= 312 sq ins