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Moorthy Vaira 4 years, 8 months ago
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Akshat Gautam 4 years, 8 months ago
Yogita Ingle 4 years, 8 months ago
Given:
Height (h) = 15 cm
Volume = 1570 cm³
Let the radius of the base of cone be r cm
Volume of a cone=1/3 πr²h
Volume = 1570 cm³
1/3 πr²h = 1570
1/3×3.14×r² ×15 = 1570
r²= 1570/(3.14×5)
= 15700/157= 100
r²=100
r=√100=10
r = 10 cm
Hence, Radius of the base is 10 cm.
Posted by Devansh Batham 4 years, 8 months ago
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Posted by Payal Choudhary 4 years, 8 months ago
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Yogita Ingle 4 years, 8 months ago
Given : CSA of cylinder = 264 m² and volume of cylinder = 924 m³
CSA of cylinder = 2πrh
264 = 2*22/7*r*h
r*h = (264*7)/44
r*h = 1848/44
r*h = 42
h = 42/r ......(1)
Now,
volume of cylinder = πr²h
Putting the value of h = 42/r in the below, we get
924 = 22/7*r²*42/r
924r = 924*7
r = 7 m
So, Radius is 7 m and the diameter will be 7*2 = 14 m.
And the height of the cylinder = 42/7 = 6 m
Posted by Mansi Class12 4 years, 8 months ago
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Vinit Kumar Dubey 4 years, 8 months ago
Yogita Ingle 4 years, 8 months ago
A rational number can be defined as any number which can be represented in the form of p/q where q is greater than 0.
22/7 is a rational number.
Posted by Miti Jain 4 years, 8 months ago
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Yogita Ingle 4 years, 8 months ago
The sum of all the angles round a point is equal to 360°.
Posted by Tushar Sinha 4 years, 8 months ago
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Ayonija Singh 4 years, 8 months ago
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Anurag Kumar 4 years, 8 months ago
1Thank You