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Sandhya
Sandhya, Mathematician
Category: Math
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Experience:  I hold M.Sc and M.Phil degrees in math and have several years of teaching experience.
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FOR SANDHYA A square based pyramid has a base length of 3cm

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FOR SANDHYAA square based pyramid has a base length of 3cm and a height of 4cm. Find the surface area of the pyramid.

A square based pyramid has a base length of 3cm and a height of 4cm. Find the surface area of the pyramid.

Solution:

given a = 3, h = 4

Surface area = a^2 + 2a*sqrt(a^2/4 + h^2)

= 3^2 + 2*3*sqrt(3^2/4 + 4^2)

= 9 + 6*sqrt(9/4 + 16)

= 9 + 6*sqrt(73/4)

= 34.63 square cm

Answer: 34.63 square cm

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Customer: replied 3 years ago.
thank you

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Customer: replied 3 years ago.
we got the 34.5 , we have to round so 35. we just needed to check to make sure we were right. thank you

okay, great

You are most welcome!