The answer is B because if the result is 3/4 and the question is asking to the result then you would an equation.
Answer:
The formula of area is Pi×R×R
and then you add all sides and answer of your question is 30cm
<span>π<span>r^2</span></span><span>h/<span>3
this is a formula if it is a right angle cone
</span></span>π(4)^2 (9)/3
exponent, 4^2 then times by π
<span>after times by (9/3)=
≈150.8
I think, double check and see if right</span>
