Question

Aright circular cylinder has base radius 14cm and height 21cm find 1)area of base 2) c. S. A 3)t.s.a4) volume

Answer 1

Answer:

r= 14cm

h=21cm

1) are of base = πr²

                      =22/7 ×14×14

                      =616 cm²

2)CSA= 2πrh

         =2×22/7×14×21

          =1848cm²

3)tsa= 2πr(r+h)

       =2×22/7×14(14+21)

       =88×35

       =3080cm²

4)volume=πr²h

              = 22/7×14×14×21

              =12936cm³