Question

A metallic pipe has internal and external diameter 10 cm and 12 CM and its length is 4.2m

find​

Answer 1

Answer:

805.2 cm cube

Step-by-step explanation:

volume of hollow cylinder= πh(R2+R2) d 10 ,12 so r= 5 and 6 so 22/7 × 4.2 (5,2+ 6,w)

b. 22 /7 × 4.2 ( 25 +36 ). 22 ×6 61/10 . b. = 805.2cm cube