The perimeter of a rectangle is 20 centimetres. The length is 6centimeters.
2 answers:
Answer:
Perimeter =20cm
Length =6
Breath = X
P= 2(l+b)
20 =2(6+x)
20=12+2x
20-12=2x
8=2x
x=8/2
x=4
Step-by-step explanation:
Answer:
The Width is 4cm
The Area is 24cm²
Step-by-step explanation:
2(6cm+xcm)=20
12+2x=20
(collect like terms)
2x=20-12
2x=8
(divide both sides by the coefficient of x)
<u>2</u><u>x</u>=<u>8</u>
2 2
x=4cm is our width
so for the area our formular is L*B=6*4=24cm²
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