Mathematics
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OpenStudy (anonymous):
right triangular prism with base legs 8 cm and 10 cm and height 20 cm and it was volume
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OpenStudy (anonymous):
volume right triangular prism=1/2*length*width*height
OpenStudy (anonymous):
ok so it was 800cm
OpenStudy (anonymous):
am i right or not?
OpenStudy (anonymous):
right
jhonyy9 (jhonyy9):
volum = area of base time height
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OpenStudy (anonymous):
it was 400? or 800
jhonyy9 (jhonyy9):
- so area of a right triangle equal ?
OpenStudy (anonymous):
400
OpenStudy (anonymous):
which one is correct 800 or 400 some peolpe said it was 800 and some people said it was 400
jhonyy9 (jhonyy9):
can you make the calcules ?
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jhonyy9 (jhonyy9):
- so how many will be area of base ?
OpenStudy (anonymous):
base legs is 8
jhonyy9 (jhonyy9):
yes
... and ?
OpenStudy (anonymous):
and 10
jhonyy9 (jhonyy9):
yes and area of base will be , how many ?
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OpenStudy (anonymous):
it was 400
jhonyy9 (jhonyy9):
no
OpenStudy (anonymous):
800
jhonyy9 (jhonyy9):
i like to learn you how you need to do these calcules
OpenStudy (anonymous):
800
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jhonyy9 (jhonyy9):
first you need to calcule the area of base
OpenStudy (anonymous):
the area base is 80
jhonyy9 (jhonyy9):
what in a right triangle is base time height divide by 2
jhonyy9 (jhonyy9):
so than area of base equal 80/2 =40
jhonyy9 (jhonyy9):
so than the volum will be 40 time the height of prisme what is 20
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jhonyy9 (jhonyy9):
so than
jhonyy9 (jhonyy9):
so than
jhonyy9 (jhonyy9):
40*20=800
jhonyy9 (jhonyy9):
than 800 is the right answer
OpenStudy (anonymous):
thanks
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jhonyy9 (jhonyy9):
ok ?
jhonyy9 (jhonyy9):
you have understood it sure ?
OpenStudy (anonymous):
yeah i understood now :) thanks so much
jhonyy9 (jhonyy9):
ok than can you say me how many will be the volum if there are a piramid and not prisme ?
jhonyy9 (jhonyy9):
- with this dimensions
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OpenStudy (anonymous):
what do you mean?
jhonyy9 (jhonyy9):
- so if you will say me i will believe you that you know how you ned to do these calcules
jhonyy9 (jhonyy9):
- i have thought that there is a piramide and not a prisme
jhonyy9 (jhonyy9):
- so than what will be the volum for this piramide ?
OpenStudy (anonymous):
it was 800
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jhonyy9 (jhonyy9):
- no this is a new exercise for you
OpenStudy (anonymous):
then what is question
jhonyy9 (jhonyy9):
- for your first exercise the right answere is 800 yes
jhonyy9 (jhonyy9):
but do you know the formula for one piramide ?
jhonyy9 (jhonyy9):
formule for volum of a piramide
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jhonyy9 (jhonyy9):
do you like to learn it ?
jhonyy9 (jhonyy9):
ok bye good luck