A solid cylinder has radius of base 21 cm and height 15 cm. 3 identical cylinders are cut from each base as shown in the given figure. Height of small cylinder is 5 cm. What is the volume (in cm³) of the remaining part?
Answer & explanation
Correct answer: option 2
Volume of the remaining part = (Volume of bigger cylinder) - (Volume of 3 smaller cylinders)
= \(\pi \) (21)² x 15 - \(\pi \) (7)²x 5
= 20020 cm³