Of the fllowing triangles given by the lenghts if their sides, which one has the greatest area?

[1] 5,12,12

[2] 5,12,13

[3] 5,12,14

[4] 5,12,15

[5] 5,12,16

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- October 23rd 2006, 04:42 PMDragontriangle with biggest area
Of the fllowing triangles given by the lenghts if their sides, which one has the greatest area?

[1] 5,12,12

[2] 5,12,13

[3] 5,12,14

[4] 5,12,15

[5] 5,12,16 - October 23rd 2006, 06:06 PMRanger SVO
It should be [B], the right triangle. Can you see why?

If you draw an acute triangle, a right triangle and an obtuse triangle with two fixed lengths, 12 and 5, look at whats happening to the area inside

http://i7.photobucket.com/albums/y28...a/triangle.jpg

maybe the picture is less confusing.