Solve for h in the mathematical formula SA = 2πr2 + 2πrh

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31-05-2017
Mathematics

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Solve for h in the mathematical formula SA = 2πr2 + 2πrh

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irspow irspow · Answer 1 · 2017-05-31T18:40:46+02:00

irspow irspow

31-05-2017

SA=2πr^2+2πrh which is equal to:

SA=2πr(r+h) divide both sides by (2πr)

r+h=SA/(2πr) subtract r from both sides

h=SA/(2πr)-r or if you prefer

h=(SA-2πr^2)/(2πr)

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RohitD RohitD · Answer 2 · 2017-05-31T18:42:43+02:00

RohitD RohitD

31-05-2017

SA = 2πr (r+h)
SA / 2πr = r + h
h = (SA - 2πr^2) / 2πr

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