Question

in a hemisphere if r=3.5cm, then CSA​

Answer 1

Answer:

curves surface area= 2πr^2

π=22/7

r=3.5cm

so

2*22/7*3.5*3.5

so .

77cm^2 is the correct answer

Answer 2

Answer:

77 cm²

Step-by-step explanation:

Formula of CSA of hemisphere is 2×22/7×r²

= 2×22/7×3.5×3.5 which is equal to 77