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Mathematics 14 Online
OpenStudy (anonymous):

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.

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

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)

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|

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|

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

ganeshie8 (ganeshie8):

|dw:1401109137756:dw|

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