A wire is in the shape of a rectangle Pentagon of side 12 centimetres. It is rebent into the shape of a rectangle whose length is 3 divided

Question

A wire is in the shape of a rectangle Pentagon of side 12 centimetres. It is rebent into the shape of a rectangle whose length is 3 divided by 2 times it’s breadth. Find the length and breadth of the rectangle

in progress 0
Doris 4 years 2021-08-16T13:10:50+00:00 1 Answers 493 views 0

Answers ( )

  1. Acacia
    2
    2021-08-16T13:12:30+00:00
    Reply

    Answer

    Total Length of Wire = Perimter of Pentagon

    = 12 × 5 = 60 cm

    Perimeter of Rectangle = 2 (l + b)

    Given, l = 3/2 b

    Therefore,

    2(3/2 b + b) = 60

    2 (5b/2) = 60

    5b = 60

    Breadth b = 12 cm

    Length l = 3/2 × 12 = 18 cm

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )