Find the total surface area of a cylinder with diameter of base 28 cm and height 70 cm.
Explanation:
Total surface area = 2πrh + 2πr2
= 2 × 22/7 × 14 × 70 + 2 × 22/7 × 142
= 6160 + 1232
= 7392
Hence, option (d).
» Your doubt will be displayed only after approval.