问题
解答题
一圆锥形小麦堆底面周长是31.4米,高是2米,如每立方米小麦重750千克,这堆小麦重多少吨?
答案
31.4÷3.14÷2,
=10÷2,
=5(米);
×3.14×52×2×750,1 3
=
×3.14×25×2×7501 3
=157×250,
=39250(千克);
答:这堆小麦重39250千克.
一圆锥形小麦堆底面周长是31.4米,高是2米,如每立方米小麦重750千克,这堆小麦重多少吨?
31.4÷3.14÷2,
=10÷2,
=5(米);
×3.14×52×2×750,1 3
=
×3.14×25×2×7501 3
=157×250,
=39250(千克);
答:这堆小麦重39250千克.