find the perimeter of the rectangle whose sides are 12 cm and 9 cm
Answers
Answered by
7
perimeter = 2 ( l + b )
= 2 ( 12 + 9 )
= 2 ( 21 )
= 42
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Answered by
3
Answer:
42
Step-by-step explanation:
perimeter of rectangle=2(l+b)
therefore,
= 2(12+9)
= 2(21)
= 42
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