Question

Gina bought the small plastic boxes below.

Answer 1

B

Explanation:

Answer 2

Answer: The container on left is made of
`2cm^2` more plastic.

Explanation:

Alright, lets get started.

There are two boxes given and for finding how much plastic they use, we need to find the surface area of both boxes.

The dimensions of left box are : 5,4 and 7

The surface area of left box =
`2(5*4+4*7+5*7)`

The surface area of left box =
`2(20+28+35)`

The surface area of left box =
`2*83`

The surface area of the left box =
`166`
`cm^2`

The dimensions of right box are : 4,3 and 10

The surface area of right box =
`2(4*3+3*10+10*4)`

The surface area of right box =
`2(12+30+40)`

The surface area of right box =
`2*82`

The surface area of right box =
`164`
`cm^2`

The difference of surface area is :
`166-164 = 2`

hence the left box is made of
`2 \ cm^2` more plastic. .............Answer

Hope it will help :)