What is the difference between the total surface area and the curved surface area of a cone whose radius is 35 cm? (Take $π =\frac{22}{7}$)
Answer & explanation
Correct answer: option 1
We know that,
Curved Surface Area of the cone (CSA) = πrl
Base area = πr2
Total Surface Area (TSA) - Curved Surface Area of the cone (CSA) = πr2
We have given,
Radius of cone = r = 35 cm
We also know that,
TSA - CSA = Base Area
= πr2 = \(\frac{22}{7}\) x 35 x 35 = 3850