malakabdulah4937 malakabdulah4937
  • 11-06-2018
  • Mathematics
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Question 11 the length of a rectangle is six times its width. if the perimeter of the rectangle is 98 m , find its area.

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perixwinkle
perixwinkle perixwinkle
  • 12-06-2018
Let's look at the formula to solve the perimeter.
2l+2w=98
We know that l=6w
Let's put that into the equation.
2(6w)+2w=98
12w+2w=98
14w=98
98÷14=7
So the width is 7. Let's find the length.
Since the length is six times the width: 7×6= 42
So, the length is 42 while the width is 7. We need to find the area.
42×7=294
The area is 294 m².
Tell me if this helps!!
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