1.

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 pic.c Reason(R ): When semi vertical angle is 45^(@) approximate error in volume is deltav=pir^(2)deltah

Answer»

A is FALSE R is TRUE
A is true R is false
A,R are true and `RrArrA`
A,R both false

ANSWER :A


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