My Math Forum Basic Geometry HELP!!!!

 Geometry Geometry Math Forum

April 2nd, 2018, 08:50 AM   #1
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Joined: Apr 2018
From: repentigny

Posts: 2
Thanks: 0

Basic Geometry HELP!!!!

I need to find "D" area please refer to attachment
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 geometry.jpg (82.3 KB, 19 views)

 April 2nd, 2018, 11:54 AM #2 Senior Member     Joined: Feb 2010 Posts: 714 Thanks: 151 If region D is a parallelogram then the area is 3840. However that is not given and the picture seems to imply that region C is an equilateral triangle. If C is an equilateral triangle then D cannot be a parallelogram. You need to provide some additional information. Either say that D is a parallelogram or C is equilateral. Last edited by mrtwhs; April 2nd, 2018 at 11:57 AM. Reason: correction.
 April 2nd, 2018, 01:42 PM #3 Global Moderator   Joined: May 2007 Posts: 6,834 Thanks: 733 D is certainly not a parallelogram. C looks like an isosceles triangle, equilateral is not needed.
 April 2nd, 2018, 02:31 PM #4 Newbie   Joined: Apr 2018 From: repentigny Posts: 2 Thanks: 0 would you guys be kind enough to solve it for me?
 April 2nd, 2018, 03:37 PM #5 Senior Member     Joined: Feb 2010 Posts: 714 Thanks: 151 I agree with everything mathman said. However the OP never said the triangle was isosceles so as stated, the problem cannot be solved. Thanks from pkstardom

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