Using radians vs degrees GCSE Maths
I'm in year 11, studying the areas of sectors and lengths of arcs at GCSE level. How do I know whether to use radians or degrees to answer a question?
It doesn't matter for areas of sectors as long as you remember to use radians or degrees consistently, i.e. (circle area)*x/360 when using degrees or x/2pi when using radians. For arc length, however, only use radians. I don't remember the entire syllabus exactly, but I would keep your calculator in degrees unless told otherwise when performing trig calculations.
Original post by eenie_49
i never had to use radians at gcse (just 2 years ago) !! what exam board do u do?
Thanks for the response!
I do Pearson Edexcel.
Update = I emailed my maths teacher and she said NOT to use radians. I was confused because my maths tutor (who teaches GCSE and A-Level maths) taught me about radians, which I hadn't seen in the GCSE syllabus.
Original post by Lignum Vitae
I'm in year 11, studying the areas of sectors and lengths of arcs at GCSE level. How do I know whether to use radians or degrees to answer a question?
Thanks for the response!
Update = I emailed my maths teacher and she said NOT to use radians. I was confused because my maths tutor (who teaches GCSE and A-Level maths) taught me about radians, which I hadn't seen in the GCSE syllabus.
Original post by Lignum Vitae
Thanks for the response!
I do Pearson Edexcel.
Update = I emailed my maths teacher and she said NOT to use radians. I was confused because my maths tutor (who teaches GCSE and A-Level maths) taught me about radians, which I hadn't seen in the GCSE syllabus.
I do Pearson Edexcel.
Update = I emailed my maths teacher and she said NOT to use radians. I was confused because my maths tutor (who teaches GCSE and A-Level maths) taught me about radians, which I hadn't seen in the GCSE syllabus.
ahh okay makes sense!
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