Question

the perimeter of a rectangular sheet is 100 cm if the length is 35 cm find the breadth and also find the area ​

Answer 1

Answer

Step-by-step explanation:

It is given that  perimeter of a rectangular sheet is 100\; cm and length is 35\; cm

Now, we know that

The perimeter of the rectangle is =2(l+b)

\Rightarrow 100 = 2(l+b)

\Rightarrow 100 = 2(35+b)

\Rightarrow 2b = 100-70

\Rightarrow 2 = \frac{30}{2}=15 \ cm

Now,  

Area of rectangle is  

\Rightarrow l \times b = 35 \times 15 = 525 \ cm^2

Therefore, breath and area  of the rectangle are 15cm and 525 \ cm^2 respectively

Answer 2

Step-by-step explanation:

perimeter of rectangular=2(l+b)

100=2×(35+b)

100=70+2b

100-70=2b

30=2b

b=30/2

b=15

therefore breath of rectangular is 15

now,

area of rectangular=l×b

=35×15

=525