Odd One Out
Name a quadrilateral that is not a parallelogram.
Possible answers: trapezoid or other examples of quadrilaterals.
Incorrect answers: square, rectangle, or rhombus.
Name 3 characteristics of a square
all sides are equal, all angles are equal, and opposite sides are parallel. each angle is 90° or right.
A quadrilateral exists with all sides equal. Must this quadrilateral be a square, or can it be any other shape? If so, which shapes can it be other than a square?
The quadrilateral can also be a rhombus.
Perimeter
What is the space inside a shape?
Trapezoid, Parallelogram, Square
Why?
Trapezoid because it has one pair of parallel sides.
What are two attributes present in all quadrilaterals?
Possible answers: They are closed. They have four sides. They also have four angles.
A parallelogram has one side of 7 centimeters. Can you be certain of any other side length of the parallelogram?
The opposite side is also 7 centimeters.
How do you find perimeter?
add all the side lengths of the shape
How do you find area?
multiply the length x width
Square, Rectangle, Rhombus
Why?
Rhombus because it does not have right angles.
Define a rectangle. (List all its attributes)
four right angles
two pairs of parallel sides
opposite sides are equal
How can you find out whether a trapezoid has a right angle or not?
Look at the angles. If any of them are 90 degrees and look like the corner of a square, it has a right angle.
What is the perimeter of a rectangle with side lengths 4cm and 8cm
24cm
What is the area of a rectangle with side lengths 6in and 9in?
54 square inches
name 3 shapes that can have at least one right angle.
Possible answers:
square, rectangle, trapezoid, triangle, pentagon
What is a parallelogram and list the three types of parallelograms.
A parallelogram is a quadrilateral with two pairs of parallel sides.
The types of parallelograms include the following: rectangles, squares, and rhombuses.
A square is always a rectangle. Is a rectangle always a square? If not, give an example where a rectangle is not a square.
If the rectangle does not have equal sides, then it is not a square.
How long do a square's sides need to be to have a perimeter of 16in?
4in
How long do a squares sides need to be to have an area of 9 square inches?
3in
Name the shape that has the exact same angles as a square.
rectangle
What are the attributes of a square?
4 equal sides
4 right angles
two pairs of parallel sides
What shape is a square but not a rhombus?
There is no such thing.
Which rectangle has the same perimeter as a 6x5 rectangle?
8x3 or 10x3
8x3
Which rectangle has the same area as a 6x6 square?
8x3 or 9x4