Question

I need major help on these links it is an important part of my grade please help me understand this topic thanks :)
http://vtok.me/pic/x99UDUS7.jpg
http://vtok.me/pic/TGs77kQt.jpg
http://vtok.me/pic/2b9tB9Zj.jpg
http://vtok.me/pic/kiyhjaX3.jpg

Answer 1

Picture one they are saying the side view is your base

Answer 2

They are also giving you clue that you have divide it into two rectangles and one right triangle so draw the side on a piece of paper and see how you can divide it into these 3 shapes. Hint draw lines from the vertices

Answer 3

@eSpeX me and my other classmate here (who posted the question) needs help

Answer 4

It is volume problems

Answer 5

Which problem are you on and what part is giving you difficulty?

Answer 6

At the moment 16 and 17 are giving me difficulties.

Answer 7

yea me 2

Answer 8

Okay, looking at 16, they are asking for the volume of this triangular prism. Given the information that you have, how would you suggest approaching this problem?

Answer 9

I think we are supposed to look at a side view like the example

Answer 10

well starting with this i would say you would make a formula V=bh or in this case V= 1/2 bhw

Answer 11

Yes

Answer 12

Exactly, now how can you find the height of the triangle of the base?

Answer 13

A hint, @Itrytohelpu was on the right path by looking at the shape in a different orientation.

Answer 14

I think we may look at the side with 5ft and 13 ft, which is the base

Answer 15

Right, if you rotate the shape you get a triangle that looks like this:

Answer 16

Oh yes, the 12 ft is there because on the other side it says 12 feet and it is the exact length.

Answer 17

Precisely. Now what do you get for the volume?

Answer 18

So far, you get 780 ft I think, but you have to multiply it by \[\frac{ 1 }{ 2 }\]

Answer 19

What numbers did you use to get that value?

Answer 20

I used the three numbers in the triangle, 12ft, 13ft, and 5ft.

Answer 21

I multiplied them together

Answer 22

and by half

Answer 23

Once rotated, your prism looks like this:

Answer 24

ohhh so basically 13 is representing the hypotenuse and the length is 8

Answer 25

Yes!

Answer 26

so now instead its going to be V=1/2 (12) (8) (5)

Answer 27

I think that may work

Answer 28

If you do those calculations you get 240 ft \[^{3}\]

Answer 29

Cubed

Answer 30

Excellent work.

Answer 31

Is that the final answer to #16?

Answer 32

Indeed.

Answer 33

Ok I am moving on to 17 now.

Answer 34

so the base of the figure in 17 is 85 cm right.......so the height is 180 cm but on the top its a triangle and the height of the triangle is 25cm......ummm am i right?

Answer 35

The image is difficult for me to see, can you draw it?

Answer 36

Or maybe I can. Is this what is shown?