Classifying Two Dimensional Figures

Ruth sorted polygons into groups. The polygons shown belong in the same group.

• Polygons with perpendicular and parallel lines

• Polygons with perpendicular lines only

• Polygons with acute and obtuse angles

• Polygons with obtuse angles only

Triangle LMN is shown below. Which of the following correctly identifies a point, a line, a line segment, and a ray on this figure?

• Point M, line MN, line segment MN, ray MN

• Point L, line LN, line segment LN, ray LN

• Point N, line MN, line segment MN, ray NL

• Point L, line LN, line segment LN, ray LM

Which figure cannot have parallel line segments?

• Square

• Pentgon

• Triangle 

• Trapezoid

A quadrilateral with two pairs of parallel sides.

• Trapezoid

• Parllelogram

• Heptagon

• Triangle

A triangle with all equal sides

• Isosceles 

• Acute

• Equilateral

A triangle with no sides equal

• Isoceles

• Acute

• Scalene

• Obtuse

A parallelogram with all sides equal.

• Triangle

• Rhombus

A polygon with five sides.

• Triangle

• Quadrilateral

• Pentagon

• Heptagon

What is the name of a 3-sided polygon if all angles are different measures less than 90°?

• Acute Triangle

• Equilateral Triangle

• Obtuse Triangle

• Right Triangle

Fabiola draws two quadrilaterals on paper, then she cuts them out. One quadrilateral has one less pair of parallel sides than the other quadrilateral. Which names the quadrilaterals she could have drawn?

• Rhombus and Rectangle

• Rectangle and Square

• Rhombus and Square

• Rectangle and Trapezoid