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A triangular pyramid…

Pls help me out

A triangular pyramid… Pls help me out-example-1

1 Answer

1 vote
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
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