Vocab Review
A triangle with two congruent sides
Isosceles
A triangle with no equal sides
Scalene
A triangle with all congruent sides
Equilateral
An angle that is greater than 90 degrees
Obtuse
A three sided polygon with a right angle
right triangle
Triangle
A polygon with 4 sides
quadrilateral
A polygon with 5 sides
pentagon
A polygon with 6 sides
hexagon
An angle that is less than 90 degrees
acute
A polygon with 7 sides
heptagon
A polygon with 8 sides
octagon
A polygon with 9 sides
nonagon
A polygon with 10 sides
decagon
A quadrilateral with straight sides where all interior angles are right angles (90 degrees)
rectangle
A quadrilateral, all sides have equal length, and every interior angle is a right angles (90)
square
All sides are congruent.
Opposite sides are parallel.
Opposite angles are equal.
rhombus
Two pair of adjacent sides that are congruent
A convex quadrilateral
kite
A quadrilateral with opposite parallel sides
parallelogram
A quadrilateral with only 1 pair of parallel sides
trapezoid
True or False- A rectangle is always a square
False- A rectangle is sometimes a square
True or False- You can classify triangles by sides and angles
true
True or False- A right triangle will always have three angles that measure 60 degrees
False- Right triangles have one angle that measures 90 degrees
True or False- concave polygons never intersect
False- Concave will meet and intersect
true or false- Mrs.Lister is the best teacher ever
you better say true