Question

1. Curved surface area of a cone is 308 cm^2 and its slant
height is 14 cm. Find :
(i) radius of the base and
(ii) total surface area of the cone,
[NCERT EXERCISE)
(FULL EXPLANATION)​

Answer 1

Step-by-step explanation:

refer to the above attachment

Answer 2

answer

r=7, tsa= 462

explaining

$\pi \: r \: l \: = 308 \\ r = 7$

therefore

$tsa = \pi \: {r}^{2} + \pi \: r \: h \\ = 154 + 308 = 462$