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20 votes
20 votes
A triangular pyramid…

Pls help me out

A triangular pyramid… Pls help me out-example-1
User Lassi
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1 Answer

12 votes
12 votes
first use pythagoras thereom to find AD ; 10^2 -8^2, square rooted. Then find DC , again using pythagoras thereom, 17^2-8^2, square rooted. Now you have AD and DC, use pythagoras thereom ; AD^2 + DC^2 = AC^2
User Alex Snaps
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