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Chapter 10: Q 4 (page 847)

Fill in the blanks:

Law of Cosines: In a triangle with side lengths a,b,andc,where胃 is the angle between the sides of length a and b,a2+b2-______=c2

Short Answer

Expert verified

The required answer is:2abcos胃

Step by step solution

01

Given information

A triangle with side lengths a, b, and c and 胃 be the angle between the sides a and b.

02

Filling in the blanks:

As per the law of cosines:

a2+b2-2abcos胃=c2

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