Uncle Henry weights 183.1 pounds and aunt Wanda weights 139.24 pounds how much more does uncle Henry weight than aunt Wanda
2 answers:
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The pentagon's area is the sum of the 5 triangles that comprise it. This is
where the factor of 2 accounts for the top and bottom. The walls have an area of 5 rectangles
where the factor of 2 accounts for the top and bottom. The walls have an area of 5 rectangles
a)
Check the picture below.
b)
volume wise, we know the smaller pyramid is 1/8 th of the whole pyramid, so the volume of the whole pyramid must be 8/8 th.
Now, if we take off 1/8 th of the volume of whole pyramid, what the whole pyramid is left with is 7/8 th of its total volume, and that 7/8 th is the truncated part, because the 1/8 we chopped off from it, is the volume of the tiny pyramid atop.
Now, what's the ratio of the tiny pyramid to the truncated bottom?
We can simplfiy to be
.
We know that is 10 and
is i, so the answer is 10i, or D.