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To find an unknown angle:

cosA= b2+c2-a2

              2bc

To find an unknown length:

a2=b2+c2-2bc cosA

Natalie H. A Level Business Studies tutor, GCSE Business Studies tuto...

2 years ago

Answered by Natalie, a GCSE Maths tutor with MyTutor


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Karolina K.

Degree: Dentistry (Bachelors) - Kings, London University

Subjects offered: Maths, Science+ 5 more

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“Hi, my name is Karolina and I am a Dentistry Student from King's College London.  I understand that many students find certain aspects of the A-level syllabus challenging and having recently completed mine I believe that I know how to...”

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Degree: Mathematics with Finance (Bachelors) - Leeds University

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Degree: Economics and Mathematics (Bachelors) - Bristol University

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“Hi!  I'm an enthuthiastic and motivated tutor with a commitment to developing my student's understanding of concepts within their chosen subjects.  As an Economics and Mathematics undergraduate I am committed to delivering a tailored...”

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Natalie H.

Degree: Modern Languages (Bachelors) - Exeter University

Subjects offered: Maths, Spanish+ 1 more

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“About Me I'm a student of Modern Languages at the University of Exeter with a strong passion for languages and cultures. I aim to motivate my students through fun, interesting and engaging sessions which are tailored towards the needs...”

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