find the area of the shaded region in Figure as shown below where ABCD is a square of side 12cm .
(class 10 CBSE SAMPLE PAPER 2017-18 MATHS)
adarshhoax:
where is the figure
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Answered by
43
Figure is missing in the Question.
[FIGURE IS IN THE ATTACHMENT]
SOLUTION:
Area of a square= side²
Area of a square ABCD= 12×12= 144 cm²
Diameter of each circle=12/2= 6 cm
[ Length = 12 cm ]
Radius of each circle(r)= 6/2= 3 cm
Area of one circle = πr² = (22/7)(3)²
= (22/7)× 9= 198/7 cm²
Area of 4 circles= 4 × (198/7)= 792/7 cm²
Area of shaded region = area of square - area of four circles
Area of shaded region =144 - 792/7
= (1008-792)/7= 216/7= 30.86 cm²
Hence, Area of shaded region = 30. 86 cm²
HOPE THIS WILL HELP YOU....
[FIGURE IS IN THE ATTACHMENT]
SOLUTION:
Area of a square= side²
Area of a square ABCD= 12×12= 144 cm²
Diameter of each circle=12/2= 6 cm
[ Length = 12 cm ]
Radius of each circle(r)= 6/2= 3 cm
Area of one circle = πr² = (22/7)(3)²
= (22/7)× 9= 198/7 cm²
Area of 4 circles= 4 × (198/7)= 792/7 cm²
Area of shaded region = area of square - area of four circles
Area of shaded region =144 - 792/7
= (1008-792)/7= 216/7= 30.86 cm²
Hence, Area of shaded region = 30. 86 cm²
HOPE THIS WILL HELP YOU....
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2
ď is corrot answer l hope
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