Properties
All parallelograms have opposite sides that are
What is parallel?
A parallelogram with four right angles.
What is a rectangle?
In a parallelogram, one angle measures 80°. Find the measure of its adjacent angle.
What is 100°?
The diagonals of a parallelogram always do this to each other.
What is bisect?
A common four-sided road sign shaped like a parallelogram.
What is a diamond-shaped warning sign?
In a parallelogram, opposite angles are
What is congruent?
A parallelogram with four equal sides.
What is a rhombus?
A parallelogram has one angle measuring 65°. Find the measure of its opposite angle.
What is 65°?
If one angle in a parallelogram is 120°, its adjacent angle is…
What is 60°?
a parallelogram has 5 sides that are congruent and parallel to each other.
false
In any parallelogram, the diagonals
bisect each other
A trapezoid has at least one pair of parallel sides. Is it a parallelogram?
no
In a parallelogram, one diagonal measures 12 cm, and the other measures 16 cm. Find the midpoint of the longer diagonal.
What is 8 cm?
In a rhombus, the diagonals are not only bisected but also
What is perpendicular?
the diagonals are perpendicular
rhombus and squares
The sum of the interior angles of any parallelogram is
What is 630 degrees?
kites and trapezoids are also considered as quadrilaterals
no
A parallelogram has side lengths of 9 cm and 15 cm. Find its perimeter.
What is 48 cm?
A parallelogram where the diagonals are equal in length.
What is a rectangle?
pg. 343 ex 21
62
For a quadrilateral to be a parallelogram, its opposite sides must be
What is congruent?
Trapezoids and squares are considered parallelograms
no, only squares
Find the opposite side of a triangle with tan if the reference angle is 30 dg. and its adjacent angle is 5.
2.9
if the diagonals of a parallelogram are perpendicular, then the parallelogram is a
rhombus
pg 343 ex22
37