Maharashtra State Board course SSC (English Medium) Class 10th Board Exam
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In the Given Figure, the Radius of the Circle is 7 Cm and M ( Arc Mbn) = 60°, Find A(O - Mcn). - Geometry

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Question

In the given figure, the radius of the circle is 7 cm and m ( arc MBN) = 60°,
find  A(O - MCN). 

Solution

Radius of the circle, r = 7 cm
m(arc MBN) = ∠MON = θ = 60º

A(O-MCN) = Area of the sector OMCN
= Area of the circle − Area of the sector OMBN
= 154 − 25.7 
= 128.3 cm2

Taking Question image data : m(arcMBN) = 68°

A(O - MBN)  = `(68/360) ` × area of circle

= 29.09 cm²

A(O - MCN)  = area of circle  - A(O - MBN)

=> A(O - MCN)  = 154- 29.09 = 124.91 cm²

  Is there an error in this question or solution?

APPEARS IN

 Balbharati Solution for Balbharati Class 10 Mathematics 2 Geometry (2018 to Current)
Chapter 7: Mensuration
Practice set 7.3 | Q: 6.3 | Page no. 154
Solution In the Given Figure, the Radius of the Circle is 7 Cm and M ( Arc Mbn) = 60°, Find A(O - Mcn). Concept: Perimeter and Area of a Circle.
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