Question

Need help on this please help

Answer 1

Explanation:

This is simple. I'll try my best to make it clear so that you can do it by yourself in the future.

If you're converting from degrees to radians, multiply by

`(\pi)/(180^*)`

If you're converting from radians to degrees, multiply by

`(180^*)/(\pi)`

Let's try some examples.

15º=
`15((\pi)/(180) )`=
`15/5((\pi)/(180/5) )=(3\pi)/(36) =(1\pi)/(12)=(\pi)/(12)`

70º=
`70((\pi)/(180) )=70/10((\pi)/(180/10))=7((\pi)/(18))=(7\pi)/(18)`

300º=
`300((\pi)/(180) )=300/10((\pi)/(180/10))=30/6((\pi)/(18/6))=5((\pi)/(3))=(5\pi)/(3)`

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`(4\pi)/(3) radians=(4\pi)/(3)( (180)/(\pi) )=(4\pi)/(3/3)( (180/3)/(\pi) )=4(60)=240` degrees (add '' º '')

`(11\pi)/(12) =(11\pi)/(12)((180)/(\pi))=(11\pi)/(12/12) ((180/12)/(\pi))=11(15)=165`

`(\pi)/(8) =(\pi)/(8)((180)/(\pi))=(\pi)/(8/4)((180/4)/(\pi))=(1)/(2)(45)=22.5 or 23`

Answer 2

4. 0.2618
5. 1.222
6. 5.236