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OpenStudy (anonymous):
a cube has side length 15 kilometers. What is its surface area?
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OpenStudy (cggurumanjunath):
surface area of cube = 6*a*a in km^2 where a=15km
OpenStudy (mathmale):
Yes: if the length of one side is a = 15 km, the surface area of this cube is A=6*a^2, or A=6(15 km)^2.
OpenStudy (anonymous):
A cube has 6 sides. The surface area of one side would be 15 * 15 since all the side lengths are the same on a cube. 15 * 15 = 225 times the 6 sides = 1,350 km²
OpenStudy (anonymous):
thank you guys!!!
OpenStudy (anonymous):
You're welcome!! Xo!
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