Suppose ÐABC = 30°. If ÐABC is bisected, what would each of the new angles measure?

bi means two equal. what is half of 30 deg?

René Descartes is credited with

http://ualr.edu/lasmoller/descartes.html

15

To solve this problem, we need to use the concept of angle bisector.

An angle bisector is a line or ray that divides an angle into two equal angles.

Given that ÐABC = 30°, we want to find the measure of each of the new angles when ÐABC is bisected.

To bisect ÐABC, draw a line or ray starting from the vertex of ÐABC and ending at the opposite side. This line or ray will bisect ÐABC into two equal angles.

Since ÐABC = 30°, when it is bisected, each of the new angles will have a measure of 30° / 2 = 15°.

Therefore, each of the new angles formed when ÐABC is bisected will measure 15°.