Question

4. The perimeter of a rectangular sheet is 100 cm. If the length is 35 cm, find its breadth and
Also find the area.​

Answer 1

Step-by-step explanation:

GIVEN :-

PERIMETER = 100 cm , LENGTH = 35 cm

TO FIND :- BREADTH AND AREA

WE KNOW THAT ,

LENGTH × BREADTH = PERIMETER

= 35 × Breadth = 100

= Breadth = 100/35 = 20/7 cm or 2.8 cm

THEN WE WILL FIND AREA,

AREA = LENGTH × BREADTH

= AREA = 35 × 20 /7 = 5×20 = 100 cm square.

Answer 2

Answer:

perimeter=2(l+b)

    =100=2(35+b)

    =100/2=35+b

    =50=35+b

    =50-35=b

    =15 cm=b

area=l×b

    =35×15

   = 525$cm^{2}$

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hope it helps...