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Byju's Answer
Standard IX
Mathematics
Volume of Triangular Prisms
The base edge...
Question
The base edge of a regular hexagonal prism is
6
cm and its bases are
12
cm apart. Find its volume in cu.cm
A
1563.45
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B
1058.45
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C
1896.37
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D
1122.37
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Solution
The correct option is
C
1122.37
Given : Height
=
6
cm
Regular hexagon has all its sides of equal length.
So, length of sides is
6
cm.
There will be total
6
equilateral triangle, as there are six sides at the base of prism.
Area of one equilateral triangle
=
√
3
4
×
side
2
=
√
3
4
×
36
=
9
√
3
∴
Area of
6
equilateral triangles
=
6
×
9
√
3
=
54
√
3
∴
Base
=
54
√
3
sq.cm
Volume of prism
=
base
×
height
=
54
√
3
×
12
=
1122.37
cu. m
Hence, option D is correct.
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