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OpenStudy (superhelp101):
a cone is formed by joining the edges of a sector of a circle with radius of 12 cm. If the surface area of the cone is 108(Pie) cm^2, what is the measure of the central angle, in degrees, of the sector
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OpenStudy (superhelp101):
do you understand the problem ? :)
jimthompson5910 (jim_thompson5910):
yeah i think so
jimthompson5910 (jim_thompson5910):
I'm just reading up on the formula, one sec
OpenStudy (superhelp101):
okay
jimthompson5910 (jim_thompson5910):
start with a circle |dw:1425961206136:dw|
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jimthompson5910 (jim_thompson5910):
draw in the central angle |dw:1425961224201:dw|
jimthompson5910 (jim_thompson5910):
|dw:1425961242713:dw|
jimthompson5910 (jim_thompson5910):
this portion that I'm shading will be erased |dw:1425961261125:dw|
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