Question

The curved surface area of a right circular cone, with slant height 16 cm and base diameter 14 cm, is (take π = 22/7 )​

Answer 1

• Here, we have given the slant height of circular cone to be 16 cm

      Diameter = 14 cm

      So, the radius will be = 7 cm( as radius is half of the diameter )

• We, have to find out the curved surface area of the circular cone.

To determine the curved surface area we will use the formula

curved surface area =  πrl ( where l is the slant height)

• Putting the values in the formula,

Curved surface area = $\frac{22}{7}$ × 7 × 16

                                 =16 × 22

                              =352 cm²

So, the curved surface area of the circular cone will be 352 cm²

Answer 2

As we know that;

Given :

slant height 16 cm

base diameter 14 cm

Find out :

find out the curved surface area of the circular cone.      

Let us :

slant height= 16 cm

base diameter= 14 cm

radius will be = 7 cm

 we will use the formula to determine the curved surface area

curved surface area =  πrl ( where l is the slant height)

Now put the values in the formula,

So,

Curved surface area = 22/7 × 7 × 16

                                =16 × 22

                             =352 cm²

Hence the curved surface area of the circular cone = 352 cm²