Question

The outer and inner radii of a hollow copper cylinder of height 6 cm are 11 cm and 10 cm. Find the
volume of the copper used.
PLS GIVE CORRECT ANSWER OR I WILL REPORT YOU​

Answer 1

Answer:

Volume = 395.64cm³

Step-by-step explanation:

Given that,

• The outer (r_1) and inner (r_2) radii of hollow copper cylinder is 11cm and 10cm respectively.
• Height (h) of copper hollow cylinder is 6cm.

As we know that,

Volume of hollow copper cylinder = πh[(r_1)² - (r_2)²]

➡ Volume of hollow copper cylinder = 3.14 × 6[(11)² - (10)²]

➡ Volume of hollow copper cylinder = 18.84 (121 - 100)

➡ Volume of hollow copper cylinder = 18.84(21)

➡ Volume of hollow copper cylinder = 395.64cm³.