Classify 2-D Figures

Classify by angle

• Equilateral

• Right

• Acute

• Obtuse

Classify by side length

• Acute

• Isosceles

• Right

• Equilateral

What kind of triangle is this?

• Acute

• Super

• Right

• Obtuse

All equilateral triangles are acute triangles.

• true

• false

A square can also be called a rectangle and a rhombus.

• True

• False

Natalia drew a square. Which of the following shapes can a square NOT be classified as?

• parallelogram

• rhombus

• trapezoid

• quadrilateral

Which statement is NOT true of this
rhombus?

• It has two obtuse angles.

• It has two pairs of parallel sides.

• It has two angles that measure less than

  90°.

• It has two pairs of perpendicular sides.

Coach V sorted these figures into two groups. What attributes did he use to sort the figures?

• Group A has figures with only right angles. Group B has figures with only obtuse angles.

• Group A has figures with both parallel and perpendicular sides. Group B has figures with no perpendicular sides.

• Group A has figures with only parallel sides. Group B has figures with only perpendicular sides.

• Group A has figures with only right angles. Group B has figures with only acute angles.

What quadrilateral is represented by the shaded part of the diagram?

• A parallelogram, because there are two sets of parallel sides

• A rectangle, because there are four right angles

• A trapezoid, because there is only one pair of parallel sides

• A rhombus, because there are four sides of equal length

Antonio drew a figure with at least two sets of parallel sides. Which could NOT be the figure Antonio drew?

• Trapezoid

• Rhombus

• Regular octagon

• Regular hexagon