Basics of Geometry Points, Lines, Planes, Angles

An angle measuring less than 180 degrees is acute.

• Always True

• Sometimes True

• Never True

Two obtuse angles are congruent.

• Always True

• Sometimes True

• Never True

Two planes intersect at only one point.

• Always True

• Sometimes True

• Never True

A line and a plane intersect at exactly two points.

• Always True

• Sometimes True

• Never True

Four points lie on the same plane.

• Always True

• Sometimes True

• Never True

Three lines intersect at one point.

• Always True

• Sometimes True

• Never True

Two perpendicular lines intersect at exactly one point.

• Always True

• Sometimes True

• Never True

The measure of an obtuse angle is greater than the measure of a right angle.

• Always True

• Sometimes True

• Never True

The sum of the measures of two acute angles is greater than the sum of the measures of two obtuse angles.

• Always True

• Sometimes True

• Never True

A plane contains three points.

• Always True

• Sometimes True

• Never True