Math 30-3 Community Properties of Triangles & Quadrilaterals

All three angles are different

• Equilateral

• Isosceles

• Scalene

All sides are of equal length

• Equilateral

• Isosceles

• Scalene

Two angles are equal

• Equilateral

• Isosceles

• Scalene

All three sides are different lengths

• Equilateral

• Isosceles

• Scalene

One angle is greater than 90°

• Acute

• Obtuse

• Right

All angles are equal to 60°

• Acute

• Obtuse

• Right

• Equilateral

• Isosceles

All angles are less than 90°

• Acute

• Obtuse

• Right

One angle is equal to 90°

• Acute

• Obtuse

• Right

Two sides are of equal length

• Equilateral

• Isosceles

• Scalene

All angles are 90 degrees

• All squares

• All rectangles

• All rhombuses

• All parallelograms

• All trapezoids