Asked by Bhawana
In the adjoining figure,the slant height and the total surface area of square based pyramid are 12cm and340sq.cm respectively.find the perimeter of the base and volume
Answers
Answered by
Steve
If the base has side length s, the total area is a square and four triangles with height 12 (the slant height):
s^2 + 4 * (1/2)(12)s = s^2 + 24s
Now just solve for s and recall that the volume is
1/3 Bh = 1/2 s^2h
where h^2 = 12^2 - (s/2)^2
s^2 + 4 * (1/2)(12)s = s^2 + 24s
Now just solve for s and recall that the volume is
1/3 Bh = 1/2 s^2h
where h^2 = 12^2 - (s/2)^2
Answered by
bhawana
40cm,363.62cm^3
Answered by
bickey
answers