Question

अगर किसी को मेरे से फॉर्मल लेटर या फिर इनफॉरमल लेटर पूछना है फिर क्लास वाला तो कोई मुझसे पूछ सकते हैं​

Answer 1

Answer:

CSA = 2πr2. The curved surface area of a hemisphere = 2πr2 square units. The total surface area of the sphere = Curved surface area of sphere + base area. We know that the base of the hemisphere is circular in shape, use the area of the circle. TSA = 2πr2 + πr2 = 3πr2.