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Mathematics 9 Online
OpenStudy (unklerhaukus):

How many steradians in a sphere

OpenStudy (unklerhaukus):

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hartnn (hartnn):

4pi ?

OpenStudy (unklerhaukus):

thats right, but how can i count them?

OpenStudy (unklerhaukus):

|dw:1346065525331:dw|

hartnn (hartnn):

|dw:1346066487591:dw| one steradian subtends 1r^2 surface area of the sphere. i have drawn 3 such areas,how many can u draw to cover entire surface area of the sphere??

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