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MEAP Preparation - Grade 4 Mathematics
2.9 Perimeter of a Rectangle
The perimeter of a rectangle is the distance around the outside of the rectangle.
A rectangle has four sides with opposite sides equal.
If l = length of the rectangle and w = width of the rectangle
Perimeter = l + w + l + w = 2l + 2w = 2 (l + w)
Perimeter = 2(l + w) units
: What is the perimeter of a rectangle with length 8 cm and width 5 cm?
Perimeter = 2(l+b)
Perimeter = 2(8+5)
Answer: 26 cm
Answer the following questions. Also write at least five examples of your own.
: The formula for perimeter of a rectangle with length L and width W is given by
P = 2 + (L+W)
P = 2 x (LxW)
P = 2 x (L+W)
: What is the perimeter of a rectangle with length 120 m and width 2 m?
240 sq m
: _____ is the distance around a figure.
: What is the perimeter of a rectangle with length 12 cm and width 10 cm?
: What is the perimeter of a rectangle with length 12 cm and width 4 cm?
48 sq cm
: What is the perimeter of a rectangle with length 8 cm and width 7 cm?
: P = 2 x (L+W) is same as
P = L + 2W
P = L + L + W + W
P = 2L + W
: What is the perimeter of a rectangle with length 15 cm and width 10 cm?
150 sq cm
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