Length of rectangle is 7cm more than its breadth if perimeter of the rectangle is 74 cm find its area

Question

Length of rectangle is 7cm more than its breadth if perimeter of the rectangle is 74 cm find its area

in progress 0
Serenity 1 month 2021-08-17T07:56:29+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-08-17T07:58:03+00:00

    Answer:

    Area = 210 cm²

    Step-by-step explanation:

    Length=7 cm

    Perimeter= 74 cm

    So, P = 2(L+B)

    => P/2 – L = B

    => 74/2 – 7 = B

    => 37-7 = B

    => B = 30 cm

    Area = L×B

    = 7 × 30

    = 210 cm²

    *Hope this will help you. plz like and follow me.

    0
    2021-08-17T07:58:24+00:00

    Answer:

    Step-by-step explanation:

    let the length and breadth of the rectangle be x and y

    according to the question,

    x = 7 + y—–(1)

    perimeter = 74 (given)

    perimeter = 2 (l + b )

    74 = 2 ( x + y ) —–(2)

    put eqn (1) in eqn (2)

    74 = 2 ( 7 + y + y )

    74 = 2( 7 + 2y )

    74 = 14 + 4y

    4y = 74 – 14

    4y = 60

    y = 60/4

    y = 15 cm

    substitute y value in eqn (1) to obtain x value

    x = 7 + 15

    x = 22cm

    so the values of length and breadth are 22cm and 15 cm respectively

    area of rectangle = length x breadth

    so : 22 x 15

    330cm²

    SO THE AREA OF RECTANGLE IS 330CM²

Leave an answer

Browse
Browse

18:9+8+9*3-7:3-1*13 = ? ( )