camiilajakobsen1935 camiilajakobsen1935

14-10-2017
Mathematics

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Donnavan is measuring the angles of a triangle. he measures the first two angles and gets 10° and 120°. what should be the measure of the third angle?
a.25° eliminate
b.50°
c.130°
d.230°

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dl20rennison34oxlqx6 dl20rennison34oxlqx6

14-10-2017

B as all angles in a triangle must add up to 180
10+120=130
180-130=50
Therefore the last angle must be 50°

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