chloegallant chloegallant

25-01-2017
Mathematics

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A square based pyramid with side length 10cm has a lateral area of 80cm squared. What is the slant height of the pyramid?

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surjithayer surjithayer

25-01-2017

area of one face=80/4=20
base length=10
area =1/2*10*h=20 where h is slant height.
h=20/5=4
so slant height h=4 cm

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