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Activity Discussion Math algebra basic

  • algebra basic

    Posted by Ananya on December 15, 2023 at 10:35 pm

    A rectangle has a length of L units and a width of 5 units. If the perimeter is 22 units, write an equation to find the length of the rectangle.

    • This discussion was modified 2 months, 1 week ago by  Ananya Gupta.
    Asha replied 2 months, 1 week ago 2 Members · 1 Reply
  • 1 Reply
  • Asha

    Member
    December 16, 2023 at 12:58 am
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    ::

    Perimeter of a rectangle = 2(length + breadth)

    –>P = 2(l+b).

    Now we know , that

    P= 22 units

    length, l = L units

    width(also known as breadth), b = 5 units

    So substituting that in the equation: P = 2(l+b),

    22=2(L + 5)

    –> 22 = 2*L + 2*5

    –> 22 = 2*L + 10

    –> 22 – 10 = 2*L

    –> 12 = 2L

    –> 2L = 12

    –> L = 12/2

    –> L = 6 units

    So the length of the rectangle is 6 units.

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