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Express 45^0 20 ' 10 ' ' in radian measu...

Express `45^0 20 ' 10 ' '` in radian measure `(pi=3. 1415)`

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`10''=10/60 min=(10/60xx60)^(@)=(1/360)^(@)`
`20'=(20/60)^(@)=(1/3)^(@)`
`:. 45^(@)20'10''=(45+1/360+1/3)^(@)`
`=((16200+1+120)/360)^(@)=(16321/360)^(@)`
Now `(16321/360)^(@)=16321/360xxpi/180rad`
`=16321/360xx3.1416/180=51274.054/64800`
`=0.79 rad`
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