Question

a rectangular sheet of paper is 55 cm by 35 cm.from it 32 circular buttons each of radius 3.5cm have been cut out.find the area of remaining sheet

Answer 1

Heya Frnd. ......☺

Area of rectangular sheet = l × b = 1925 cm^2

Ar. of 1 button = pi × r^2 = 22/7 × 3.5 = 11 cm^2

Now,

Ar. of the remaining sheet = Ar. of rectangular sheet - 32 × are. of buttons

=> 1925 - (32 × 11)

=> 1925 - 352

=> 1573 cm^2 ..........☆ ANS ☆

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Answer 2

Answer:Let the...

Rectangular sheet =55cm by 35cm

So,it's area=l*b

=55*35

=1925cm.

And the area of radius button =πr2

=22/7×3.5

=38.5cm

So,1 button =38.5cm

And 32buttons =32×3.8

=1232cm2

Remaining sheet =1925-1232cm

=693cm2...

Thank you...