Area of Sector | Areas Related To Circles | CBSE | Class 10 | Math
By Shiksha Abhiyan
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Episodes: 7
Description
This podcast is a part of a series for, CBSE Class 10 Maths. We recommend that you take a look at our YouTube channel, to enter this new world of virtual learning at its best. || Youtube: Shiksha Abhiyan || t.ly/dN9j8 ||
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Q7. A broach is made with silver wire in the form of a circle with diameter 35 mm. The wire is also used in making 5 diameters which divide the circle into ten equal sectors. Find the area of each sector of the broach.
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Oct 26, 2020 |
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Q6. An umbrella has 8 ribs which are equally spaced. Assuming the umbrella to be a flat circle of radius 42 cm, fmd the area between two consecutive ribs of the umbrella.
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Oct 26, 2020 |
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Q5. To warn ships for underwater rocks, a lighthouse spreads a red coloured light over a sector of angle 72° to a distance of 15 km. Find the area of the sea over which the ships are warned.
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Oct 26, 2020 |
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Q4. A car has two wipers which do not overlap. Each wiper has a blade of length 21 cm, sweeping through an angle of 120°. Find the total area cleaned at each sweep of the blades.
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Oct 26, 2020 |
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Q3. The minute hand of a clock is 12 cm long. Find the area of the face of the clock described by the minute hand in 35 minutes.
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Oct 26, 2020 |
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Q2. The perimeter of a sector of a circle of radius 14 cm is 68 cm. find the area of the sector.
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Oct 26, 2020 |
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Q1. In a circle of radius 21 cm, an arc subtends an angle of 60° at the center, find the area of the sector.
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Oct 05, 2020 |