Question

Find the volume of solid generated by revolving the circle x²+y²=25 about y–axis.

Answer 1

Answer:

78.53

Step-by-step explanation:

The general equation of the circle is x²+y²=r²

r² = 25

=> r = 5

Area = πr²

= π5²

=>3.14 x 25

=> 78.53