Question

oblicz pole powierzchni kuli, ktore objetosc wynosi 36000(pi)

Answer 1

V=36000π

4/3πr³ =36000π  /:π

4/3r³=36000

r³=36000 · 3/4

r³=27000

r=∛2700

r=30 

P=4πr² =30²·4π =900·4π =3600π j.²

 

Answer 2

P =4πr2
V= 4/3 πr3

36000π =4/3 πr3
36000=4/3r3 / *3
108000=4r3 / :4
r3= 27000
r= 30 

P= 4*π30 2
P= 4*π900
P= 3600π