How to find the perimeter of a rectangle - SAT Math
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A rectangular garden has an area of 
. Its length is 
meters longer than its width. How much fencing is needed to enclose the garden?
A rectangular garden has an area of
We define the variables as 
and 
.
We substitute these values into the equation for the area of a rectangle and get 
.
or 
Lengths cannot be negative, so the only correct answer is 
. If 
, then 
.
Therefore, 
.
We define the variables as
We substitute these values into the equation for the area of a rectangle and get
Lengths cannot be negative, so the only correct answer is
Therefore,
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A rectangle has a width of 2_x_. If the length is five more than 150% of the width, what is the perimeter of the rectangle?
A rectangle has a width of 2_x_. If the length is five more than 150% of the width, what is the perimeter of the rectangle?
Given that w = 2_x_ and l = 1.5_w_ + 5, a substitution will show that l = 1.5(2_x_) + 5 = 3_x_ + 5.
P = 2_w_ + 2_l_ = 2(2_x_) + 2(3_x_ + 5) = 4_x_ + 6_x_ + 10 = 10_x_ + 10 = 10(x + 1)
Given that w = 2_x_ and l = 1.5_w_ + 5, a substitution will show that l = 1.5(2_x_) + 5 = 3_x_ + 5.
P = 2_w_ + 2_l_ = 2(2_x_) + 2(3_x_ + 5) = 4_x_ + 6_x_ + 10 = 10_x_ + 10 = 10(x + 1)
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Find the perimeter of a rectangle with width 7 and length 9.
Find the perimeter of a rectangle with width 7 and length 9.
To solve, simply use the formula for the perimeter of a rectangle.
Substitute in the width of seven and the length of nine.
Thus,
To solve, simply use the formula for the perimeter of a rectangle.
Substitute in the width of seven and the length of nine.
Thus,
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Find the perimeter of a rectangle whose side lengths are 1 and 2.
Find the perimeter of a rectangle whose side lengths are 1 and 2.
To solve, simply use the formula for the perimeter of a rectangle. Thus,
To solve, simply use the formula for the perimeter of a rectangle. Thus,
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Find the perimeter of a rectangle with width 6 and length 9.
Find the perimeter of a rectangle with width 6 and length 9.
To solve, simply use the formula for the perimeter.
Another way to solve this problem is to add up all of the sides. Remember that even though only two values are given, a rectangle has 4 sides. Thus,
To solve, simply use the formula for the perimeter.
Another way to solve this problem is to add up all of the sides. Remember that even though only two values are given, a rectangle has 4 sides. Thus,
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You have a poster of one of your favorite bands that you are planning on putting up in your dorm room. If the poster is 3 feet tall by 1.5 feet wide, what is the perimeter of the poster?
You have a poster of one of your favorite bands that you are planning on putting up in your dorm room. If the poster is 3 feet tall by 1.5 feet wide, what is the perimeter of the poster?
You have a poster of one of your favorite bands that you are planning on putting up in your dorm room. If the poster is 3 feet tall by 1.5 feet wide, what is the perimeter of the poster?
Perimeter of a rectangle is found via:
You have a poster of one of your favorite bands that you are planning on putting up in your dorm room. If the poster is 3 feet tall by 1.5 feet wide, what is the perimeter of the poster?
Perimeter of a rectangle is found via:
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Three of the vertices of a rectangle on the coordinate plane are located at the origin, 
, and 
. Give the perimeter of the rectangle.
Three of the vertices of a rectangle on the coordinate plane are located at the origin,
The rectangle in question is below:
The lengths of the rectangle is 10, the distance from the origin to 
; its width is 7, the distance from the origin to 
. The perimeter of a rectangle is equal to twice the sum of its length and width, so calculate:
.
The rectangle in question is below:
The lengths of the rectangle is 10, the distance from the origin to
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