Question

What is the volume of the figure composed of two congruent triangular prisms if a = 5 units, b = 3 units, and c = 6 units?
60 cubic units
90 cubic units
45 cubic units
180 cubic units

Answer 1

https://app30.studyisland.com/pics/250950num5.png

Answer 2

@aahmed123

Answer 3

ok this is the same thing as before except with TRIANGULAR prisims

Answer 4

ok.

Answer 5

so lets find the area of the base, or BxA/2=_

Answer 6

basexarea/2

Answer 7

?

Answer 8

nu...

Answer 9

look at the model.

Answer 10

ok

Answer 11

5 x 3 /2

Answer 12

split the figure into two triangular prisims, notice that instead of numbers there are letters

Answer 13

yeah u got it

Answer 14

now whats ur answer?

Answer 15

7.5

Answer 16

7.5 x 2

Answer 17

?

Answer 18

alright do u know the formula for finding the volume of a triangular prisim?

Answer 19

No.. :(

Answer 20

not to be rude but, IF U DONT KNOW THAT HOW R U HERE!?!

Answer 21

ok instead of that... Did u read the LESSON part?

Answer 22

I dont mean to be rude or anything just asking, plz dont feel offended.

Answer 23

I do. But I don't. Is it 1/2 x base x height?

Answer 24

close... the formula is the Area of the Base x the Height.

Answer 25

OHHHHHH. see. that is why I said i didn't

Answer 26

btw an important thing to know

Answer 27

Yeah

Answer 28

when it comes to triangular prisims, the BASE is ALWAYS and i mean ALWAYS the triangle part, even if the prisim is resting on a rectangle

Answer 29

Ok. :)

Answer 30

alright now the "height" of this prisim is C

Answer 31

7.5xC=7.5x6

Answer 32

45

Answer 33

Great! now thats the volume of ONE prisim, but since there r TWO...

Answer 34

45*2

Answer 35

YUP

Answer 36

Thank you!!!! :)

Answer 37

Anytime :D just tag me when u need me

Answer 38

Alright!