Triangles & Quadrilaterals

A scalene triangle has

• all equal sides

• 2 equal sides

• at least 2 equal sides

• 0 equal sides

An equilateral triangle has

• at least 2 equal sides

• all equal sides

• 0 equal sides

• 2 equal sides

An isosceles triangle has

• at least 2 equal sides

• 0 equal sides

• 3 equal sides

• 2 equal sides

An obtuse triangle has

• 1 obtuse angle

• 2 obtuse angles

• 3 obtuse angles

• at least 2 obtuse angles

An acute triangle has

• 1 acute angle

• 2 acute angles

• 3 acute angles

• 0 acute angles

A right triangle has

• 3 right angles

• 2 right angles

• at least 2 right angles

• 1 right angle

A/An ____________ triangle is always also an isosceles triangle.

• Scalene

• Equilateral

• Right

• Acute

What are all of the classifications for the green triangle?

• Obtuse, Isosceles Triangle

• Obtuse, Equilateral Triangle

• Obtuse, Scalene Triangle

• Obtuse, Acute, Scalene Triangle

A quadrilateral is a _____ sided polygon.

• 3

• 4

• 5

• 6

What quadrilateral is this? What attributes makes this true?

• Parallelogram because it has 2 pairs of parallel sides.

• Trapezoid because it has no parallel sides.

• Trapezoid because it has 1 pair of parallel sides.

• Rectangle because it has 4 right angles and parallel sides.