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Ram Kushwah 6 years, 11 months ago
R=21/2 cm
R1=14/2 cm
R2=7/2 cm
Area=1/4×π(21^2-14^2-7^2)
=1/4×22/7(441-196-49)
1/4×22/7×196=154 cm2
Posted by Arpit Raj 5 years, 8 months ago
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Hardeep Singh 6 years, 11 months ago
Posted by Ebbali Pavithra 6 years, 11 months ago
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Posted by Avishek Pandey 6 years, 11 months ago
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Ram Kushwah 6 years, 11 months ago
d=12.6 cm so r=6.3 cm
Area=1/2πr2
=1/2×3.14×6.3×6.3=62.31 cm2
Posted by Mini Ameer 6 years, 11 months ago
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Posted by Anmol Dhillon 6 years, 11 months ago
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Yogita Ingle 6 years, 11 months ago
Circumference of circle = 52.8 cm
Circumference of circle = 2 πr
52.8 = 2 × 22/7 × r
52.8 = 44/7 × r
r = 52.8 × 7/44
r = 8.4 cm
Posted by Gurbeer Singh 6 years, 11 months ago
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Rishi Raj 6 years, 11 months ago
Chinmay Kumar 6 years, 11 months ago
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Adarsh Upadhyay 6 years, 11 months ago

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Dîby@Jït D@S 4&4 6 years, 11 months ago
1Thank You