Tolong jawab yaPlisss​

Jawaban:

1. V = π x r^2 x t

210 = 22/7 x r^2 x 14

210 = 44 x r^2

r^2 = 4.77cm^2

luas bola = 4 x π x r^2

= 4 x 3.14 x 4.77

= 59.91cm^2

2. luas abcd = 2/4 luas bola

98 = 2/4 luas bola

luas bola = (98×4)/2

= 196cm^2✅