A thin wire 20 cm long is formed into a rectangle.if the width of this rectangle is 4 cm,what is its length?
Answers
Answered by
2
Answer:
l = 6 cm
Step-by-step explanation:
p 2(l + b)
2(4+x)=20
8 + 2x =20
2x = 12
x =6
Answered by
1
Answer:
The Lenght of rectangle is 6cm
Step-by-step explanation:
As the wire is formed Into a rectangle
The Perimeter of the rectangle is the Lenght of the wire that is 20cm
Thus we know breadth is 4cm
And formula for Perimeter of a rectangle is 2(l+b)
Where l and b are length and breadth of the rectangle
Using this here we get
=>2(4+l)=20
=>4+l=10
=>l=6, where l is the Lenght of the rectangle
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