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CBSE Class 10 Answered

Please solve this question 
Asked by adityaahuja099 | 04 Dec, 2017, 04:19: PM
answered-by-expert Expert Answer
begin mathsize 16px style Radius space of space each space semicircle equals 10 over 2 equals 5 space cm Area space of space each space semi minus circle equals 1 half straight pi cross times 5 squared equals 1 half cross times 25 straight pi space cm squared rightwards double arrow Area space of space two space semi minus circles equals 25 straight pi space cm squared Area space of space shaded space region equals 100 space cm squared Area space of space rectangle equals Area space of space 2 space semi minus circles plus Area space of space shaded space region rightwards double arrow AD cross times CD equals 25 straight pi plus 100 rightwards double arrow 10 cross times CD equals 25 straight pi plus 100 rightwards double arrow CD equals 2.5 straight pi plus 10 Shortest space distance space between space two space semicircles equals CD minus radius space of space each space semi minus circle equals left parenthesis 2.5 straight pi plus 10 right parenthesis minus 5 minus 5 equals 2.5 straight pi plus 10 minus 10 equals 2.5 straight pi end style
Answered by Rashmi Khot | 05 Dec, 2017, 03:41: PM

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CBSE 10 - Maths
Please solve this question ?
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Asked by Vidushi412 | 11 Aug, 2020, 10:20: PM
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CBSE 10 - Maths
How to prove that opposite sides of a quadrilateral circumscribing a circle  subtend supplementary angles at the centre of the circle 
Asked by ssai6651 | 08 Jan, 2020, 07:39: AM
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CBSE 10 - Maths
Find area of shaded region
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Asked by tejutanu2004 | 16 Sep, 2019, 08:27: PM
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CBSE 10 - Maths
 Two circular pieces of equal radii and maximum area, touching each other are cut out from a rectangular card board of dimensions 14 cm 7 cm. Find the area of the remaining card board. Use pie=22/7
Asked by shailesh.solanki | 18 Mar, 2018, 07:29: PM
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CBSE 10 - Maths
In the figure, a square OABC is inscribed in a quadrant OPBQ. If OA = 20 cm, find the area of the shaded region.
Asked by Topperlearning User | 27 Jul, 2017, 02:33: PM
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CBSE 10 - Maths
The inside perimeter of a running track shown in the figure is 400 m. The length of each of the straight portions is 90 m, and the ends are semi-circles. If the track is 14 m wide every where, find the area of the track. Also, find the length of the outer boundary of the track.
Asked by Topperlearning User | 27 Jul, 2017, 02:33: PM
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CBSE 10 - Maths
Four equal circles are described about four corners of a square so that each touches two of the others, as shown in the figure. Find the area of the shaded region, if each side of the square measures 14 cm.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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CBSE 10 - Maths
In triangle ABC, angle A = 90o, AB = 12 cm and BC = 20 cm. Three semi-circles are drawn with AB, AC and BC as diameters. Find the area of the shaded portion.
Asked by Topperlearning User | 27 Jul, 2017, 02:33: PM
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CBSE 10 - Maths
In the figure, ABC is an equilateral triangle of side 12 cm. The circle is centered at A with radius 6 cm. Find the area of the shaded region.
Asked by Topperlearning User | 27 Jul, 2017, 02:28: PM
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CBSE 10 - Maths
Find the area of the region ABCDEFA shown in the figure, given that ABDE is a square of side 10 cm, BCD is a semi- circle with BD as diameter, EF = 8 cm, AF = 6 cm and angle AFE = 90o.
Asked by Topperlearning User | 27 Jul, 2017, 02:33: PM
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