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
Answered by bhawana
40cm,363.62cm^3
Answered by bickey
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