Always, Sometimes, Never: Points, Lines, Planes, and Angles

An angle measuring less than 180 degrees is acute.

• Always True

• Sometimes True

• Never True

Tags

CCSS.HSG.CO.A.1

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

Tags

CCSS.HSG.CO.A.1

Three lines intersect at one point.

• Always True

• Sometimes True

• Never True

Tags

CCSS.HSG.CO.C.9

Two perpendicular lines intersect at exactly one point.

• Always True

• Sometimes True

• Never True

Tags

CCSS.HSG.CO.A.1

CCSS.HSG.CO.C.9

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

• Always True

• Sometimes True

• Never True

Tags

CCSS.4.G.A.1

CCSS.4.MD.C.5

CCSS.4.MD.C.6

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

Tags

CCSS.HSG.CO.A.1