7 quads & triangle classification

geometry final ig

square

• 4 equal side lengths

• 4 right angles

• opposite parallel sides

• perpendicular diagonals

rectangle

• opposite equal sides (that are not the same)

• 4 right angles

• opposite parallel sides

• diagonals bisect each other

parallelogram

• opposite equal sides

• opposite parallel sides

• no right angles

• diagonals bisect each other

rhombus

• 4 equal sides

• opposite parallel sides

• 4 not right angles

• perpendicular diagonals

trapazoid

• 1 pair parallel sides

Isosceles trapezoid

• 1 pair parallel sides

• non parallels sides are equal

• “symmetrical”

kite

• 2 pairs adjacent equal sides

• 4 non right angles

• perpendicular diagonals

equalateral - side

3 equal sides

isosceles - side

2 equal sides

scalene - side

no equal sides

acute - angle

3 angles < 90

right - angle

1 angle = 90

obtuse - angle

1 angle > 90