Classifying Quadrilaterals and Triangles

A triangle with all angles less than 90 degrees and all sides of equal length

• equilateral acute

  triangle

• isosceles right

  triangle

• equilateral obtuse

  triangle

• scalene acute

  triangle

Tags

TEKS.MATH.4.6C

A triangle with one 90 degree angle and two sides of equal length

• isosceles right triangle

• isosceles obtuse triangle

• equilateral acute triangle

• scalene right

  triangle

Tags

TEKS.MATH.4.6C

a triangle with one angle over 90 degrees and no sides of equal length

• scalene obtuse triangle

• equilateral acute triangle

• scalene right triangle

• isosceles obtuse

  triangle

Tags

TEKS.MATH.4.6C

What attributes do the shapes A, D, and E shown have in common?

• They each have 4 sides of equal length

• They each have 4 right angles each

• The each have 4 right angles and 4 sides of equal length

• They each have no attributes in common

Tags

CCSS.5.G.B.3

CCSS.5.G.B.4

What attributes do the shapes C, and F have in common?

• They each have 4 sides of equal length

• They each have 4 right angles each

• The each have 4 right angles and 4 sides of equal length

• They each have no attributes in common

Tags

TEKS.MATH.3.6B

What attributes does shape B have?

• 4 sides of equal length

• 4 right angles each

• 4 right angles and 4 sides of equal length

Tags

CCSS.4.G.A.2

CCSS.4.G.A.1

CCSS.4.MD.C.5

CCSS.4.MD.C.6

What attribute does A, B, D, and F have in common?

• They each have 3 sides

• They each have at least 1 right angle

• They each have 3 sides and at least 1 right angle

• They do not share a common attribute

Tags

TEKS.MATH.1.6D

What attribute does B, C, D, and E have in common?

• They each have 3 sides

• They each have at least 1 right angle

• They each have 3 sides and at least 1 right angle

• They do not share a common attribute

Tags

TEKS.MATH.1.6D

What attribute does B and D have in common?

• They each have 3 sides

• They each have at least 1 right angle

• They each have 3 sides and at least 1 right angle

• They do not share a common attribute

Tags

TEKS.MATH.1.6D

What attributes do shapes C and D have in common?

• They each have 4 sides

• They each have exactly 1 pair of parallel sides

• They each have 2 pairs of parallel sides

• They each have 4 sides and have 2 parallel sides

• They each have 4 sides and exactly 1 pair of parallel sides

Tags

CCSS.4.G.A.2