A cone has a radius of 20 cm and height 21 cm, then the total surface area (in cm$^2$)of the cone is:(Take $\pi = \frac{22}{7}$)

3080 3160 2920 3240

3080

We know that, Total surface area of cone = πr(l + r) l2 = r2 + h2 We have, Radius (r) = 20cm height (h) = 21cm l2 = 202 + 212 l = 29 Total surface area = \(\frac{22}{7}\) × 20 × (29 + 20) = 3080