MTS 21 22-07-2022 Shift 3


Question 1

The volume of a right circular cone is 3080 cm3. If the radius of its base is 7 cm, then what is the height of the cone?

एक लंब वृत्तीय शंकु का आयतन 3080 cm3 है। यदि इसके आधार की त्रिज्या 7 था। है, तो शंकु की ऊंचाई कितनी
है? 


Options

A

B

C

D


Solution:

Correct Answer:

C


Volume of a right circular cone V  = 13\frac{1}{3} π \pi R2H

V = 3080 and R =7

3080 = 13\frac{1}{3} π \pi 72H

H =  3080×3×7 22×7 ×7 \frac{ 3080 \times 3 \times 7}{ 22 \times 7 \times 7} = 60

लंब वृत्तीय शंकु का आयतन V  = 13\frac{1}{3} π \pi R2H

V = 3080 और  R =7

3080 = 13\frac{1}{3} π \pi 72H

H =  3080×3×7 22×7 ×7 \frac{ 3080 \times 3 \times 7}{ 22 \times 7 \times 7} = 60

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