Question

13. The diagram shows the top view of a prism that has a height of 17.5 cm. Which of the following is the best approximation of the volume of the prism?


(Points : 5)
1414 cm3
546 cm3
315 cm3
273 cm3

Answer 1

I think you m ight be able to draw a line down the middle to find the area of the triangle and multiply it by the height

Answer 2

wht is that?

Answer 3

oh ok

Answer 4

I don't know how to do that bibby.. I alwasy get it wrong

Answer 5

always*

Answer 6

ok, use the pythagorean theorem

Answer 7

I have the photo there molly?

Answer 8

Still dont know how to do it... ugh

Answer 9

come on why u have to do that

Answer 10

Do what? lol

Answer 11

wht bibby did

Answer 12

or you can just use \(a=\dfrac{\sqrt3}{4}a^2=\dfrac{\sqrt3}{4}6^2\)

then recall that volume is base*height

Answer 13

area of base*

Answer 14

\(\Huge area~of~triangle=\frac{base\times height}{2}\) yeah?

Answer 15

and u just need to find the freaking height

Answer 16

height is 17.5

Answer 17

which all you have to do is to search up the right calculator and plug the right numbers in.

Answer 18

I'm sorry I'm too distracted to write out an answer. jhanny got you though don't worry
she's really cool

Answer 19

:/

Answer 20

*molly is unsatisfied* :P

Answer 21

Oh ok! Thanks anyways:)

Answer 22

\[V_{\triangle} = \sf \text{area of base} \times \sf \text{height}\]

Answer 23

there goes @Jhannybean typing an endless reply :P

Answer 24

oh nvm it ended

Answer 25

I'm really confused still..

Answer 26

the thing is that you have to figure out the area of the triangle and multiply it by umm.... 17.5

Answer 27

area is 8.71?

Answer 28

have you figured out h here?

use that to determine the area of the base.

multiply that by the height to get the volume. (the volume is a sum of areas)

Answer 29

So the area is 8.71?

Answer 30

uh no it's around 20

Answer 31

area of the base is around 20?

Answer 32

oh oops wht just happened

Answer 33

um hum

Answer 34

????