When planet Jupiter is at a distance of 824.7 million km from earth, its angular diameter is measured to be 35.72'' of arc. Calculate the diameter of Jupiter.

Explanation

`θ = 35.72′′`
`1''=4.85xx10^(-6)` radian implies `35.72''=35.72xx4.85xx10^(-6)` rad.
`d=DQ=824.7xx35.72xx4.85xx10^(-6)`
`=1.4287xx10^(5)km`