Question

What's the lateral area of a right cylinder if the radius of the base is 12mm and the altitude of the cylinder is 5 times the base radius? Use the π key to calculate and round your answer to the nearest whole number. A. 2,715 mm2 B. 3,167 mm2 C. 4,524 mm2 D. 905 mm2

Answer 1

Answer:

Step-by-step explanation:

The lateral area of a cylinder is given by:

Area=πrl+2πr^2

radius,r=12 mm

length,l=5*12=60mm

therefore the lateral area will be:

Area=π*12*60

Area=2,261.95 mm^2

The area of the bases will be:

A=2*π*12^2=904.78 mm^s

The lateral area will be:

2,261.95+904.78

=3,166.73

=3167 mm^2