" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Va = La x t
3080 = La x 20
La = 3080/20
La = 154 cm²
La = π x r²
154 = 22/7 x r²
154 x 7 = 22 x r²
22r² = 1078
r² = 49
r = 7 cm
D = 2 x r
D = 2 x 7
D = 14 cm (B)