A calculator can show you the answer to these very quickly.

Answer:
OK
Step-by-step explanation:
The first screenshot is for #7 and the second screenshot is for #8
The answer is 36pi * 12pi
Put it into calculator
Hey there mate ;),
According to given conditions, your question is :

So, now calculating,

<em>Now </em><em>lets solve </em><em>by </em><em>reducing </em><em>to </em><em>lowest </em><em>terms,</em>

<em>Now </em><em>by </em><em>di</em><em>viding,</em><em> </em><em>we </em><em>get,</em>

<em>Therefore,</em><em> </em>
