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May 29, 2024, 04:50:10 pm

Author Topic: help with 3-D structures- geometry  (Read 652 times)  Share 

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bar0029

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help with 3-D structures- geometry
« on: August 28, 2010, 09:41:54 am »
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how do i  do this:

exercise 12H of essential book
question 4

the cross section of a right prism is an isosceles triangle ABC. AB=BC=16cm and the magnitude of of ABC is 58degrees. the equal edges AD, BE and CF are parallel and each length 12cm. Calculate
a) length AC
b) the length AE
c) magnitude of AE and EC


any help would be great  :)
99.05