A cylindrical tube has an outer diameter of 2.5
em and an inner diameter of 15 cm. Its length is
7 cm. If it has to be anti-rust coated on the outer
side, the inner side and the rims on both sides,
what is the total surface area to be covered for
chis purpose? Calculate the cost if the rate is
10.50 per cm
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Step-by-step explanation:
Answer: The size of angle SPQ is 52.4 degrees.
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