• Math

  Rectangles

  Posted by John Gone on June 23, 2023 at 11:13 am

  1. A rectangle has a length that is twice its width. If the perimeter of the rectangle is 36 units, what are its length and width?

  Lucky Chauhan replied 1 year, 10 months ago 3 Members · 2 Replies

  • geometry
• 2 Replies

• 

  Aditi Mishra

  Member

  June 23, 2023 at 11:24 am

  Let the width of the rectangle be x<div>Therefore, the length of the rectangle is 2x.</div><div>
  </div><div>Given, the perimeter is 36 </div><div>
  </div><div>Perimeter =2(w+l)</div><div>=2(x+2x)=36</div><div>⇒2(3x)=36</div><div>⇒6x=36</div><div>⇒x=6⇒ Width</div><div>2x=12⇒ Length</div><div>
  </div><div>Therefore, the length of the rectangle is 12cm and width is 6cm.</div>

• 

  Lucky Chauhan

  Member

  June 23, 2023 at 4:16 pm

  Let the length of rectangle is l and width is w …

  Then according to the question ..

  l = 2w..

  Given..

  Perimeter = 36 unit

  We know that –

  Perimeter = 2( lenth + width)

  And l = 2w then..

  36 = 2( 2w + w)

  3w = 18

  W = 6 and

  l = 2*6

  l= 12

  Then lenth of rectangle of will be 12 and width of rectangle will be 6.

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