The measure of one angle of a triangle is 105°. What do you know about the measures of the other two angles? Check all that apply.

The angles in a triangle add up to 180°, so the other two angles sum to 180° − 105° = 75°. Both must be less than 75° because each is positive and together they total 75°; therefore, both are acute and neither is more than 75°. The other angles do not have to be equal, so one is not necessarily 75° or 45°.

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