c) A thin wire 20 centimetres long is formed into a
rectangle. If the width of this rectangle is
4 centimetres, what is its length?
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c) A thin wire 20 centimetres long is formed into a
rectangle. If the width of this rectangle is
4 centimetres, what is its length?
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Answer:
The wire has formed the perimeter of rectangle. As such,
Petimeter of Rectangle = sum of all sides
As the length of wire was 20 cm, therefore the perimeter of rectangle is 20 cm.
Perimeter of rectangle =2 (length + width)
2 (Length + 4) = 20
Length + 4 = 20/2
Length + 4 = 10
Length = 10 - 4
Length = 6 cm.
Length of formed rectangle is 6 cm.
Answer => Length of formed rectangle from
wire is 6 centimeter.
Answer:
6cm
Step-by-step explanation:
2l=20-(2×4)=12
2l= 12= l= 12/2= 6cm