Subject:
MathAuthor:
gaigefrederickCreated:
1 year agoAnswer:
a)10.39
b)343
c)308
d)l=25
e)TSA 1870
Step-by-step explanation:
a)
length of diagonal is equal to
[tex] \sqrt{3} \: x [/tex]
x is side
so √3X6
10.39
b)
volume of cube is equal to
[tex] {s}^{3} [/tex]
=7X7X7
343
c)
CSA of hemisphere is
[tex]2\pi {r}^{2} [/tex]
=2X(22/7)X7X7
308
d)
slant hight
so r = 7 h=24 l= ?
using Pythagoras theorem
[tex] {l}^{2} = {h}^{2} + {r}^{2} [/tex]
l2=24X24+7X7
l=√625
l=25
e)
TSA of hemisphere+ TSA of cone =TSA of icecream
TSA of cone =
[tex]3\pi {r}^{2} [/tex]
so 3X22/7×7×7
=462
TSA of cone is
[tex]\pi {r}^{2} + \pi \: rl \: + \pi \: r \ (l + r)[/tex]
154+550+704
=1408
adding both we get
icecream TSA =1870
Author:
brock12sz
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1Answer:
volume of the figure if edge is 7cm is 343cm^3.
Author:
chilihs94
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