Area of a rectangle is 21 cm2. If length of the rectangle is 3 cm, find the perimeter of the rectangle.
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hey! i'm fine
wbu??
btw can i get your intro??
no Mehar sis i'm not ignoring you
now i'm not sad now i'm happy
Answers & Comments
Step-by-step explanation:
Area of rectangle = length × breadth
length = 3cm
brearth = ?
Perimeter = ?
Area = 21 cm
Now ,
Area = l×b
21 = 3 × b
b= 21/3
b= 7
Now ,
perimeter of rectangle = 2(l+b)
2(3×7)
2×21
=42 cm
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Verified answer
Answer:
Area of rectangle = length x breadth
lets assume,
length (L)=3 cm
breadth (B)=4 cm
∴Area of rectangle = L×B
= 3×4
= 12 cm square
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