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 February 27th, 2017, 12:38 PM #1 Newbie   Joined: Feb 2017 From: uk Posts: 6 Thanks: 0 Surd help How do I work out the area of a triangle prism as a surd? I've got the area of the triangle as a surd 2√70 and the length (which is 46cm). Thanks. Last edited by skipjack; February 28th, 2017 at 07:00 AM.
February 27th, 2017, 01:38 PM   #2
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Quote:
 Originally Posted by tenpence How do I work out the area of a triangle prism as a surd? I've got the area of the triangle as a surd 2√70 and the length (which is 46cm). Thanks.
Just multiply ...

$46 \cdot 2\sqrt{70} = 92\sqrt{70} \, cm^3$

Last edited by skipjack; February 28th, 2017 at 07:01 AM.

February 28th, 2017, 05:07 PM   #3
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Quote:
 Originally Posted by tenpence How do I work out the area of a triangle prism as a surd? I've got the area of the triangle as a surd 2√70 and the length (which is 46cm). Thanks.
Do you mean the surface area? Do you have the measurements of the lengths? A diagram?

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