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Math 50
1.6 - More with Formulas
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The formula for the perimeter of a rectangle is: ________________
(here, is length and is width)
Perimeter of a rectangle
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The formula for the perimeter of a rectangle is: ________________
(here, is length and is width)
Perimeter of a rectangle
𝑷=𝟐 𝒍+𝟐𝒘
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Ex 1.A rectangle has a length of 19 meters and a width of 42 meters. Find the perimeter.
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A parallelogram has ____ sides, and the __________________ sides are parallel.
Area of a parallelogram
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A parallelogram has ____ sides, and the __________________ sides are parallel.
Area of a parallelogram
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A parallelogram has ____ sides, and the __________________ sides are parallel.
Area of a parallelogram
4opposite
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The formula for the area of a parallelogram is:_________________
(here, is base and is height)
Area of a parallelogram
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The formula for the area of a parallelogram is:_________________
(here, is base and is height)
Area of a parallelogram
𝑨=𝒃𝒉
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Ex 2.Find the area of the parallelogram.
12 in.
14 in.
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Ex 2.Find the area of the parallelogram.
12 in.
14 in.
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Ex 2.Find the area of the parallelogram.
12 in.
14 in.
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Ex 2.Find the area of the parallelogram.
12 in.
14 in.
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Ex 3.Suppose the area of a parallelogram is 72 square inches. If the height is 9 inches, find the base.
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(here, is length, is width, is height)
Volume of a box
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Ex 4.The volume of a box is 336 cubic centimeters. If the length is 12 cm and the width is 7 cm, find the height.
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Ex 5.A strangely-shaped room is shown below. How many square feet of carpet will you need to carpet the room?
5 ft
4 ft
14 ft
2 ft
6 ft
2 ft
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Ex 5.A strangely-shaped room is shown below. How many square feet of carpet will you need to carpet the room?
5 ft
4 ft
14 ft
2 ft
6 ft
2 ft
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Ex 5.A strangely-shaped room is shown below. How many square feet of carpet will you need to carpet the room?
5 ft
4 ft
14 ft
2 ft
6 ft
2 ft
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Ex 5.A strangely-shaped room is shown below. How many square feet of carpet will you need to carpet the room?
5 ft
4 ft
14 ft
2 ft
6 ft
2 ft
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Ex 5.A strangely-shaped room is shown below. How many square feet of carpet will you need to carpet the room?
5 ft
4 ft
14 ft
2 ft
6 ft
2 ft
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Ex 5.A strangely-shaped room is shown below. How many square feet of carpet will you need to carpet the room?
5 ft
4 ft
14 ft
2 ft
6 ft
2 ft
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Ex 5.A strangely-shaped room is shown below. How many square feet of carpet will you need to carpet the room?
5 ft
4 ft
14 ft
2 ft
6 ft
2 ft
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Ex 5.A strangely-shaped room is shown below. How many square feet of carpet will you need to carpet the room?
5 ft
4 ft
14 ft
2 ft
6 ft
2 ft
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Perimeter of rectangle:
Area of a parallelogram:
Volume of a box:
Summary
