Expression 3: left parenthesis, StartFraction, "a" Over 360 , EndFraction , right parenthesis left parenthesis, 2 pi "r" Subscript, 1 , Baseline , right parenthesisa3602πr1
equals=
5.4 3 8 4 4 5 9 4 9 2 15.43844594921
3
Expression 4: left parenthesis, StartFraction, "a" Over 360 , EndFraction , right parenthesis left parenthesis, pi "r" squared , right parenthesisa360πr21