Question

(i) Calculate the CSA of the hemispherical dome if the
base radius 3.5m
a) 77 sq.m
c) 77/2 sq.m
b) 78.5 sq.m
d) 77.5 sq.m​

Answer 1

Answer:

77 sq. m

Step-by-step explanation:

CSA of hemisphere=2pai×r^2

= 2×22/7 ×3.5×3.5

=77 sq. m