Question

find the surface area of tube whose length is 21 cm,internal radius is 10cm and the thickness of the metal used in 1.5 cm.find the cost of painting it all over at the rate of Rs.16 per cm square. answer should be - 48651.36


find the surface area of tube whose length is 21 cm,internal radius is 10cm and the thickness of the metal used in 1.5 cm.find the cost of painting it all over at the rate of Rs.16 per cm square.
answer should be - 48651.3

please answet me ​​

Answer 1

Answer:

48651.3.

Step-by-step explanation:

answer should be - 48651.36find the surface area of tube whose length is 21 cm,internal radius is 10cm and the thickness of the metal used in 1.5 cm. find the cost of painting it all over at the rate of Rs. 16 per cm square. answer should be - 48651.3.