Answer:
Angle ACB equals 60 degrees.
The measures of the three interior angles of a triangle must equal to a total of 180 degrees. Therefore we must add the two shown angles and subtract that number from 180 in order to find the correct answer. The step is as follows:
180 - (80 + 40) = 60
©Copyright 2008.Najwa S. Hirn. All rights reserved.
1 comment:
Geometry is one of the most interesting math applications in my opinion. Thanx for posting it. It refreshed my memory. It's been quite a while since i've done that sort of math.
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