Question

The curved surface area of a cone is 670 cm and its radius is 15 cm. Then its total surface area is
a) 13770.4 cm
b) 1377.14 cm
c) 137.704 cm
d) 137704 cm 101​

Answer 1

Answer:

hey mate,,, here is your answer...

b) 1377.14 cm

Step-by-step explanation:

TSA = CSA + area of Base

TSA = πrl + πr^2

= 670 + ( 22/7 * 15 * 15 )

= 670 + 707.14

TSA = 1377.14 cm

hope it helps you!!!