Question

A chocolate bar measures 50 mm wide, 90 mm long, and 3 and 1 over 2 mm high. Will’s Wrapping Company is making a wrapper to cover the chocolate bar. Use the correct net and determine how much paper will be needed to make the wrapper.

The net of a square prism with a height of 50 millimeters, a length of 90 millimeters, and a width of 3 and 1 over 2 millimeters.

Will’s Wrapping Company needs 4,640 mm2 of paper to wrap the chocolate bar.
Will’s Wrapping Company needs 4,990 mm2 of paper to wrap the chocolate bar.
Will’s Wrapping Company needs 9,980 mm2 of paper to wrap the chocolate bar.
Will’s Wrapping Company needs 19,960 mm2 of paper to wrap the chocolate bar.

Answer 1

"and 3 and 1 over 2 mm high" I'm not sure what this means... what are the 3 and the 1, and is this exactly how it's worded on the original page?

Answer 2

thats the image for it

Answer 3

Oh, so the 3 and 1 over 2 is 3 1/2 :P

Answer 4

?

Answer 5

\[3\frac{ 1 }{ 2 }\]

Answer 6

Ok, so I think the best way the solve the would be to seperate the rectangles, find the surface area of each one, and add it up.

Answer 7

do you have any question i could help you with?

Answer 8

Nah, but do you understand what to do on this?

Answer 9

no

Answer 10

this is the one i chose Will’s Wrapping Company needs 4,990 mm2 of paper to wrap the chocolate bar.

Answer 11

I don't think that's right

Answer 12

oh

Answer 13

You would multiply 90mm by 50 mm, then multiply that by 2 since there's two rectangles of the same size

Answer 14

ok so 90 x 50 x 2?

Answer 15

The for the outer 3 "flaps" (Not the inner one, since that was counted in one of the two bigger rectangles) you'd multiply their length (3 1/2 mm) by their width (50mm)

Answer 16

the answer is 9,000?

Answer 17

Then add it all together

Answer 18

Not 9000, we still have the outer flaps

Answer 19

so what do we do with the outer flaps?

Answer 20

\(\color{#0cbb34}{\text{Originally Posted by}}\) @ElectricImpurity
The for the outer 3 "flaps" (Not the inner one, since that was counted in one of the two bigger rectangles) you'd multiply their length (3 1/2 mm) by their width (50mm)
\(\color{#0cbb34}{\text{End of Quote}}\)

Answer 21

9000 x 2 ?

Answer 22

Read what I just posted :P

Answer 23

so the answer is 9,980?

Answer 24

Yep!

Answer 25

YES thank you!

Answer 26

could you help me on anothother?

Answer 27

Sure

Answer 28

Use a net to find the surface area of the right triangular prism shown below:

Three rectangles next to each other with a width of 7 feet. The first and second rectangles length are unknown, and the last is 10 feet long. There are two right triangles above and below the last rectangle. One is labeled with a base of 6 feet and a height of 8 feet.

198 square feet
216 square feet
270 square feet
280 square feet

Answer 29

First, see the two triangles? The add up to a rectangle, so their combined area is 48 feet

Answer 30

then it's 48 x 3?

Answer 31

Where did the 3 come from?

Answer 32

i thought that since i...... Nvm

Answer 33

Oh, ok. I'm not sure if the triangles equal the other rectanges EXACTLY. I think you might be right though

Answer 34

so the answer is 198?

Answer 35

Well, no. The rectangles area is 70 feet, while the combined triangles equal 48 feet

Answer 36

There's still one more rectangle, though.

Answer 37

so 216 or 270?

Answer 38

Pretty sure the last rectangle is 42 feet, so 188 + 42

Answer 39

No, that's not right...

Answer 40

yea the answer to that is 230 not ans answer for the question

Answer 41

Ah, maybe the two bigger rectangles aren't equal

Answer 42

do you have discord?

Answer 43

Yep

Answer 44

me to

Answer 45

(Discord username is the same as on here :P) Oh now I see, I measured the rectangle wrong, it's actually 7 x 8, the correct answer is 216.

Answer 46

the name is the same on here

Answer 47

thanks

Answer 48

No problem

Answer 49

i though it was between 216 and 270

Answer 50

could you help me on 2 more?

Answer 51

Alright :P

Answer 52

:D

Answer 53

Which net represents the pyramid below?

Answer 54

not this one

Answer 55

A square pyramid is shown. What is the surface area?

A square based pyramid, with bases labeled 3.5 centimeters and side length of triangle labeled 7 centimeters.

19.25 cm2
30.625 cm2
49.625 cm2
61.25 cm2

Answer 56

Hello?

Answer 57

im going to submit the exam now

Answer 58

I GOT AND F
NOOOOO

Answer 59

where did you go???

Answer 60

ok i'll meet you on discord

Answer 61

what your # number?

Answer 62

mine is #1108

Answer 63

hey