Question

A cylindrical vessel, without lid has to be tin coated including both of its sides. if the radius is of the base is 0.5 m and its is height 1.4 m calculate the cast of the tin at the rate of 50 per 1000 cm.

Answer 1

Radius of the base = r = 0.5 m = 0.5 × 100 cm = 50 cm
Height= h = 1.4 m = 1.4 × 100 cm = 140 cm

Surface area to be tin-coated = 2( 2πrh + πr²)

= 2[(2 × 3.14 × 50 × 140) + (3.14 × 50 x 50)]

Cost of tin-coating at the rate of Rs. 50 per 1000 cm2 = Rs 1000
Total cost = 50/1000 × 103620
= Rs 5181

Answer 2

Answer:

rupees 539

Step-by-step explanation:

pls refer to the attachment

407471d5adc67e4be9ff4ef343f533b4.pdf