Posted by sarah on Thursday, March 29, 2012 at 10:39am.
a person is standing 12m away from a street light that is 9m tall. How tall is he if his shadow is 3m long?

geometry  Steve, Thursday, March 29, 2012 at 12:06pm
Let h be the height
Using similar triangles,
h/9 = 3/15 = 1/5
h = 9/5 = 1.8m

geometry  Anonymous, Friday, May 18, 2012 at 2:34pm
If the measure of ÐDAB = 50°, and ÐDAC = 20°, what is ÐCAB?
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