Name that shape
Rectangle
To find the area I multiply the length by the width
Rectangle or square
I multiplied my base of 5 inches by my height of 6 inches and got 30 inches.
The label should be inches squared to indicate area
When I want to find out what it would take to fill a shape what would I do?
I multiply length by width by height
Problem: A rectangular prism has the following dimensions:
What is the surface area of the rectangular prism?
184 cubic cm
184 cm3
This shape has 2 sets of parallel lines, but no right angles
Parallelogram
To find the area I square one side
Square
I am solving for the area of a triangle. I multiply my bottom by one of the sides, it doesn't matter which one.
I should multiply my base by my height. The height should be perpendicular (at a right angle to) the base. Then I divide by two and label my answer.
When I find volume I label my answer with what?
unit cubed
unit3/inch3/meter3/cm3
Shape Two
Volume of Rectangular Prism #2
95 cubic feet
95 ft3
This shape has three sides
Triangle
To find the area I multiply the base by the height then divide my answer in half.
The base must be perpendicular to the height
Triangle
I am finding the area of a Kite and I multiply the whole length by the whole width, then label my answer unit2
A Kite is made up of triangles and you should only use 1/2 the width or divide your answer by 2 when you are done.
A swimming pool is shaped like a rectangular prism. The pool has a length of 20 meters, a width of 10 meters, and a depth of 2 meters. What is the volume of the pool?
400 cubic meters
400 meters3
Shape Three
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This shape has one set of parallel lines, and one set of non-parallel lines. It may or may not have any right angles.
Trapezoid
To find the area I multiple the base by the height. The base must be perpendicular to the height.
Parallelogram
I am solving for the area of a parallelogram. I multiply the base by one side length.
Parallelograms are a squished rectangle. You need to use the base and the height not a side length
A box of cereal is in the shape of a rectangular prism. The box has a length of 10 units, a width of 4 units, and a height of 12 units. Your Mom ate 25% of the cereal already. What is the volume of the cereal left in the box?
360 cubic units
360 units3
(480cubic units- 25%)
Shape Four
Water depth
This shape has two sets of parallel lines, and can be divided into 4 triangles
Kite
To find the area I find the average of the two parallel lines. (I had their lengths together then divide by two). I then multiply this by the height that is perpendicular to the average of the base and top
Trapezoid
I am solving for the area of a trapezoid. I multiply my top and the bottom (the two parallel sides are the top and bottom) by the height
Trapezoids need to be squished back into a rectangle. Find the average of the top and bottom
(the two parallel sides are the top and bottom)
then use that as the base and multiply it by the height and label the answer
A toy box has a length of 12 inches, a width of 8 inches, and a height of 6 inches.
You have toys in boxes that are 3 inches cubes.
What is the volume of the toy box?
How many can you fit in the toy box?
576 inches3
576 cubic inches
16 toys in their 3 inch cube boxes - 2 sets of 4 in a row across the bottom, with another layer of 2 sets of 4 in a row across the top
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