Homework Help: Trigonometry

Posted by Anonymous on Monday, October 26, 2009 at 3:33pm.

The measure of one of the equal angles in an isoscles trinagle is twice the measure of the remaining angle. Determine the exact radian measures of the three angles in the triange

Trigonometry - Reiny, Monday, October 26, 2009 at 4:44pm
let the 'remaining' angle of the triangle be x radians
then each of the other angles is 2x radians

2x + 2x + x = pi radians
x = pi/5 radians

then the "exact" measures of the three angles are
pi/5, 2pi/5 and 2pi/5

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