Question

calculate total cost of the metal used in the instrument.​

Answer 1

Answer:

Cost of the metal = ₹577.5

Step-by-step explanation:

Area of metal= {π×(7×7-3.5×3.5)}/2

Area of metal =π×36.75/2

Area of metal = 57.75

Cost of the metal = ₹57.75×10

Cost of the metal = ₹577.5