Question

find the volume of the triangular prism to the nearest whole unit

Answer 1

Okay, so what you have to do is get the area of the triangle up front, can you do that?

Answer 2

Once you find that area, multiply it to the length of this triangular prism... and you'll have the volume

Answer 3

no i have no clue how to find the area:(

Answer 4

Formula for the area of a triangle is
\[\Large \frac12\times base \times height\]

Answer 5

The triangle up front has height 2 and a base of length 12...

Answer 6

So the area of that triangle is...?

Answer 7

i already know the answer its 216ft^3 but i need the formula on the volume

Answer 8

Yes... okay, if you must have the formula for volume... then here it is :)
For a triangular prism, the volume is given by

\[\Large \frac12 \times base\times height \times length\]

Answer 9

base here being 12
height being 2
and length being 18

Answer 10

alright thanks:) a lot:)

Answer 11

No problem :)

Answer 12

do you know the formula for a cone?

Answer 13

i know the formula i just cant figure out how to simplify it 1/3(Area of Base)(height) = 1/3 pi r2 h

Answer 14

Yeah, volume of a cone is given by
\[\Large V = \frac13 \times \pi \times r^2\times h\]

Answer 15

ok thanks that much more simple

Answer 16

Just key in... what's your radius?

Answer 17

im not sure yet hold on

Answer 18

6in

Answer 19

i think i got it

Answer 20

Okay :)

Answer 21

Just remember
pi is just 3.1416 (approx)
and your height is 11

Answer 22

lol sorry but do you know the formula for a pyramid?

Answer 23

@terenzreignz