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Assertion (A) : If semi vertical angle o...

Assertion (A) : If semi vertical angle of a cone is `45^(@)` and height is 30.05 cm then approximate volume of cone is 9045.08 `pi`c.c
Reason(R ): When semi vertical angle is `45^(@)` approximate error in volume is `deltav=pir^(2)deltah`

A

A,R are true and R is correct explanation of A

B

A,R are true of but R is not correct explanation of A

C

A is true , R is false

D

A is false, R is true

Text Solution

Verified by Experts

The correct Answer is:
D
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