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Tatiana [17]
4 years ago
14

A cone and a pyramid have the same height and same volume. If the radius of the base of the cone is r, what is the side length o

f the square base of the pyramid?
Mathematics
1 answer:
alina1380 [7]4 years ago
8 0
Let Vc : cone's volume, Vp : pyramid's Volume, r radius, h height. w width and l length.


Vc=πr²h/3


Vp=(lwh)/3

make it equal to each other and cancel out the 3.

πr²h = lwh 

heights will cancel out

πr²=lw

l=(πr²)/w


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<em>Everything is done in degrees</em>

<em />

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8 0
3 years ago
PLEASE PLEASE PLEASE HELP!!
irga5000 [103]
  9            a
------  =  -----
  a            5

a^2 = 45 

a = 3<span>√5
</span>
  4            b
------  =  -----
  b            5

b^2 = 20

b = 2√5

answer: 

a = 3√5
b = 2√5

hope it helps
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