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How do you solve this math problem?
In 1794, the French Army sent soldiers
up in hot air balloons to observe enermy
troop movements. One such balloon, the
L’Entrepenant, had a volume of 864(pi) / 3
cubic meters
(the formula for volume of a sphere
is V =4/3 (pi) r ^ 3
What is the diameter of the balloon, and what's the surface area?
2 Answers
- chenteLv 61 decade agoFavorite Answer
use that equation to solve for r, diameter would be r x 2.
chente
- Anonymous1 decade ago
V = 4/3 pi r^3
3V = 4pi r^3
3V/4pi = r^3
cuberoot(3V/4pi) = r
diameter = 2 x cuberoot(3V/4pi)
surface area = 4pi r^2
