Question

Surface area of solid cylinder of radius 2cm and height 10cm is equal to

Answer 1

Answer:

SA=150.72 cm²

Explanation:

SA=2πr²+2πrh

SA={2(3.14)(2cm)²}+{2(3.14)(2cm)(10cm)}

SA={2(3.14)(4cm²)}+{2(3.14)(20cm²)}

SA={2(12.56cm²)}+{2(62.80cm²)}

SA=(25.12cm²)+(125.60cm²)

SA=150.72cm²