Solve for h:V = π h r^2
V = h π r^2 is equivalent to h π r^2 = V:π h r^2 = V
Divide both sides by π r^2:
Answer: h = V/(π r^2)
7/10 of the degrees of a circle is 252 . I dont know the second part of the question sorry.
Answer:

Step-by-step explanation:








Now, Finding the New selling price



Finally, finding the Cost price :
We have, Profit % = 8 %












Therefore, the cost price of the jewellery is Rs 40000
Hope I helped!
Best regards! :D
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