22. The formula of perimeter of rectangle ?
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perimeter of rectangle == 2(l+b))))
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Answer:
2 (a + b) units.
Step-by-step explanation:
Perimeter of the given rectangle is a + b + a + b. Since opposite sides of a rectangle are always equal, we need to find the dimensions of only two sides to find the perimeter of a rectangle. The perimeter of the above rectangle with sides 'a units' and 'b units' is: a + b + a + b = 2a + 2b = 2 (a + b) units.
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