Grade 6 Geometry Review

Two lines that intersect at a 90 degree angle.

• perpendicular lines

• endpoint

• straight angle

• parallel lines

Tags

CCSS.HSG.CO.A.1

Angles that together add up to 90 degrees.

• supplementary angle

• obtuse angle

• complementary angle

• acute angle

Tags

CCSS.7.G.B.5

An angle between 91 and 179 degrees.

• a supplementary angle

• an obtuse angle

• a complementary angle

• an acute angle

Tags

CCSS.4.G.A.1

Triangles with all equal sides.

• Trapezoid

• Scalene

• Equilateral

• Isosceles

Tags

CCSS.4.G.A.2

Triangle with no equal sides.

• Scalene

• Isosceles

• Trapezoid

• Equilateral

Tags

CCSS.4.G.A.2

Triangle with one angle greater than 90 degrees.

• Equilateral triangle

• Scalene triangle

• Obtuse triangle

• Acute triangle

Tags

CCSS.4.G.A.2

A 90 degree angle.

• Right triangle

• Right angle

• Square triangle

• Square angle

Tags

CCSS.4.G.A.1

A closed figure with straight sides that intersect only at endpoints.

• Triangle

• Square

• Circle

• Polygon

Tags

CCSS.2.G.A.1

Lines that never touch and are on the same plane.

• Perpendicular lines

• Parallel lines

• Straight lines

• Acute lines

Tags

CCSS.HSG.CO.A.1

Angles that together add up to 180 degrees (make a straight line).

• Complementary angles

• Supplementary angles

• Obtuse angles

• Acute angles

Tags

CCSS.7.G.B.5