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Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 8

A circle is formed with 8 equal granite stones as shown in the figure each of radius 56 cm and whose central angle is 45°. Find the area of the granite stones. (π=227) - Mathematics

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Question

A circle is formed with 8 equal granite stones as shown in the figure each of radius 56 cm and whose central angle is 45°. Find the area of the granite stones. `(pi = 22/7)`

Sum

Solution

Number of equal sectors ‘n’ = 8

Radius of the sector ‘r’ = 56 cm

Area of each sector = `1/"n" pi"r"^2  "sq.units"`

= `1/8 xx 22/7 xx 56 xx 56  "cm"^2`

= 1232 cm2

Area of each sector = 1232 cm2  ...(approximately)

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Area of the Sector
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Chapter 2: Measurements - Exercise 2.1 [Page 59]

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Samacheer Kalvi Mathematics [English] Class 8 TN Board
Chapter 2 Measurements
Exercise 2.1 | Q 10 | Page 59
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