A plane is passed parallel to the base (an equilateral triangle) of a pyramid. The length of the altitude of the pyramid is 4 cm. while the distance from the vertex to the plane is 3 cm. if the area of the base is 64 sq. cm. what is the length of a side of the intersection.
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OpenStudy (anonymous):
@ganeshie8
ganeshie8 (ganeshie8):
you're doing this problem or the previous problem on rhombus ?
OpenStudy (anonymous):
im also finding the answer on that
ganeshie8 (ganeshie8):
could u copy paste the previous question here
OpenStudy (anonymous):
what is the volume of a pyramid whose altitude is 16cm. long and whose base is enclosed by a rhombus whose sides are each 6 cm long and whose acute angles are 30 degree
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ganeshie8 (ganeshie8):
ty :) could u also draw the rhombus and label the angle and side ?
OpenStudy (anonymous):
i dont know how to do that. :(
ganeshie8 (ganeshie8):
click "Draw" button below this textbox
OpenStudy (anonymous):
|dw:1401166486601:dw|
ganeshie8 (ganeshie8):
draw only the base (rhombus)
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ganeshie8 (ganeshie8):
cuz we're stuck on finding the area of base
OpenStudy (anonymous):
|dw:1401166634468:dw|
ganeshie8 (ganeshie8):
Yes ! label the given side and angle measurements
OpenStudy (anonymous):
i dont know whats the right part to label it
OpenStudy (anonymous):
|dw:1401166745490:dw|
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ganeshie8 (ganeshie8):
a rhombus has all equal sides,
so all sides must be 6
ganeshie8 (ganeshie8):
yes ! what about the angle ?
OpenStudy (anonymous):
it mus be diagonal?
ganeshie8 (ganeshie8):
angle is not a diagonal
OpenStudy (anonymous):
|dw:1401166830307:dw|
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OpenStudy (anonymous):
then what
ganeshie8 (ganeshie8):
Great !
ganeshie8 (ganeshie8):
we're ready now to find the area
OpenStudy (anonymous):
is that right
OpenStudy (anonymous):
so whats the next step now
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