Construct a triangle ABC with the following dimensions AB = 100mm, AC = 70 mm and angle BAC of 45° Determine the other side and angles of the triangle
Use SAS(Side angle side ) rule. Then cosine law i.e a^2=b^2+c^2-2*b*c*COSA We will get a=69 mm Now we have all sides use sine law a/sinA=b/sinB We will get B=60(deg) And use the law: sum of all angles of triangle is 180(deg) We will get C=75(deg).
