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Elodia [21]
1 year ago
15

Calculate the area of a rectangular field with perimeter 88 cm and length 18 cm​

Mathematics
1 answer:
gogolik [260]1 year ago
3 0

The area of the rectangular field is 468cm².

Step-by-step explanation:

If, length is 18cm; width is unknown( let x represent width). Then,

<u>Perimeter of a rectangle</u>= Length + Width+ Length + Width

88= 18 + x + 18 + x

88= 36 + 2x

88-36 =2x

52= 2x

52/2=2x/2

26=x

•x=26cm

<em>The</em><em> </em><em>width</em><em> </em><em>of</em><em> </em><em>the</em><em> </em><em>rectangle</em><em> </em><em>is</em><em> </em><em>2</em><em>6</em><em>c</em><em>m</em><em>.</em>

<u>Area of a rectangle</u>= Length × Width

=18cm×26cm

= 468cm².

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Remark

The answer to this problem is less than the smallest time of the two people working together. that fact lets out C and D (38 minutes and 75 minutes). Now you have to choose 15 minutes and 18 minutes. There's a method. No guessing needed.

Givens
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Step Two
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Answer working together it took them 18 minutes  <<<<< 
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