Assuming the ball's diameter is the smallest dimension of the block, it is 10cm in diameter.
So, the fraction of the block occupied by the ball is
(pi/6 * 10^3)/(14*12*10) = 31%
Giselle has a block of wood that measures 14 cm by 12 cm by 10 cm. She is making a wooden ball in tech class.
a) What percent of the wood is wasted?
b) What assumptions are you making?
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