*An angle that is less than a right angle.
*An angle that measures less than 90 degrees.

What is an acute angle?

Find the area of a triangle with a height of 4in and a base of 6in.
12in^2
A quadrilateral two pairs of parallel sides and an angle of 70 degrees.
Parallelogram
What is a quadrilateral?
A four sided polygon.
A parallelogram is ____________________ a square.
always sometimes never
sometimes

*An angle that forms a straight line.
*An angle that measures 180 degrees.

What is a straight angle?

Find the area of the following triangle:

54
A quadrilateral with four sides that have the same length.

What is a rhombus?
OR
What is a square?
All rectangles have two pairs of parallel sides.
True or False?
True; Rectangles have two pairs of parallel sides.
A parallelogram is ___________________ a quadrilateral.
always sometimes never
always

A triangle that has no sides with the same length.

What is a scalene triangle?

Find the height of a triangle with a base of 6in and an area of 27in^2.
9in
What is the area of a rectangle with a height of 6ft and a base of 8ft?
48ft^2
Which statement is true?
A) All parallelograms are squares.
B) All parallelograms are rectangles.
C) All rectangles are squares.
D) All squares are parallelograms.
D) All squares are parallelograms.
A right triangle always has a right angle.
True or False
True
A parallelogram that has four right angles.

What is a rectangle?
OR
What is a square?

Find the base of a triangle with height 7cm and an area of 28cm^2.
8cm
Look at the shape below.

Which is a correct classification for this shape from LEAST specific to MOST specific?
A) polygon, quadrilateral, rectangle
B) quadrilateral, parallelogram, square
C) polygon, quadrilateral, square
D) quadrilateral, rectangle, square
A) polygon, quadrilateral, rectangle

This figure is not a square because it does not have 4 equal sides.
Kengston built a square sandbox for his sister. Which pair of terms can also be used to describe the shape of the sandbox?

A) parallelogram and pentagon
B) triangle and quadrilateral
C) quadrilateral and parallelogram
D) trapezoid and rectangle
C) quadrilateral and parallelogram

A square is a rhombus.
A square is a quadrilateral.
An equilateral triangle is ___________ an acute triangle.
(acute= angles with less than 90 degrees)
sometimes always never
always

A quadrilateral with two pairs of parallel lines and a 90 degree angle.

Rectangle
What is the name of a triangle with one 90 degree angle?
A right triangle.

This quadrilateral has for equal sides, four right angles, and 2 pairs of parallel sides.
What is a square?

Some parallelograms are trapezoids.
True or False?

False; Parallelograms have two pairs of parallel sides.
A parallelogram is __________________ a rectangle.
always sometimes never
sometimes
