Math, asked by munna34, 1 year ago

from a circular card sheet of radius 16cm two circles of radius 3 cm and a rectangle of length 2.5 cm and breadth 1 cm are removed .Find the area of the remaining sheet.

Answers

Answered by aneeshkanakapally
1
Area of Circular card sheet = pi * r ^2
=3.14*16*16
=803.84

Area of one circles= pi*r^2
=3.14*3*3
=28.26
Area of two circles= 28.26*2=56.52

Area of Rectangle=l*b = 2.5*1 = 2.5

Area of remaining sheet=Area of Circular card sheet -
Area of two circles - Area of Rectangle.
=803.84-56.52-2.5
=744.82


Answered by sanjuvansh25
0

Answer:

Area of an circular sheet = πR²

= 22/7 x 16 cm x 16 cm

= 22/7 x 256 cm²

= 5632 /7 cm ²

= 804.59 cm ²

Area of inner circle = π²

= 22/7 x 3 x 3

= 198/7 cm ²

=28.28 cm²

Area of two inner circles = 28.28 x 2

= 56.56 cm ²

Area of rectangle= l x b

= 2.5 cm x 1 cm

= 2.5 cm²

Remaining area of circular sheet = Area of circular sheet - ( area of inner circles + area of rectangle)

= 804.56 cm ² - (56.56 cm ² + 2.5 cm ²)

= 804.56 cm ² - 59.06 cm ²

= 745.5 cm ² Ans.

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