Quadrilaterals
A quadrilateral that has 4 straight, closed sides, 4 vertices and 4 angles?
What is a quadrilateral?
This is true about ALL triangles.
Three straight, closed sides, three vertices, three and angles.
How do we find the area of a shape?
Multiply the length x width
If I want to measure the distance around a shape (its perimeter), which mathematical operation should I use?
You need to add the lengths together.
Cassie wants to put down tiles in her kitchen. Her kitchen is 10 feet long and 8 feet wide. How many tiles will she need?
80
A quadrilateral with 4 straight, closed sides that are equal in length, 4 vertices, and 4 right angles.
What is a square?
This is true about ALL quadrilaterals.
What is "They all have 4 straight closed sides, 4 vertices and 4 angles."
This is how we measure the area of a shape. This area is measured in _______________.
What are square units?
What is the perimeter of a rectangle whose sides are 2 meters long and 9 meters long?
What is 22 meters long?
Xan wants to put a fence around his backyard. His yard is a perfect square with a length of 9 feet. How many feet of fence will he need?
36
A quadrilateral with 4 vertices, 4 angles, two sets of parallel sides, and all sides are equal.
What is a rhombus?
True or false: A triangle can have a right angle?
True!
Ms. Kelly made an array with square tiles. The array is 9 tiles long and 5 tiles wide. What is the area?
What is 45 square units?
What is the perimeter of a square whose sides are 7 inches long?
What is 28 inches long?
Zoey wants to put a new rug in her room. Her room is 6 feet by 9 feet. How many feet of rug will she need to cover her room?
54
A quadrilateral with only one set of parallel lines, 4 vertices and 4 angles.
What is a trapezoid?
True or False: A polygon can have open sides?
FALSE!
What is the area of a rectangle whose length is 8 inches and whose width is 4 inches?
What is 32 square inches?
What is the perimeter of a trapezoid whose sides are 3 yards long, 5 yards long, 12 yards long, and 5 yards long?
What is 25 yards long?
Gaby is building a pen for her puppy. She needs a fence that is 34 feet around. If the length is 15 feet, what is the width of each side?
2
A quadrilateral with opposite sides that are the same length, 4 vertices and 4 right angles.
What is a rectangle?
True or False: A rectangle can be a square?
FALSE! A square can be a rectangle, but a rectangle cannot be a sqaure!
What is the area of a square whose length is 6 centimeters and whose width is 6 centimeters?
What is 36 square centimeters?
What is the perimeter of a rhombus whose sides are 9 centimeters long?
What is 36 centimeters?
Corban is making a cake for his friend. The icing around the edge of the cake has a length of 5 inches and a width of 3 inches. What is the perimeter?
16