What is the range of the data below? A box-and-whisker plot. The number line goes from 100 to 125. The whiskers range from 102 t
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We start by sketching the triangle ABC as shown below. We label the side with the small letters a,b, and c on the opposite of the angle A, B, and C
The angle m<C is labeled x
To work out the size of x, we use the cosine rule
![x= cos^{-1}( \frac{6.5}{38.5}) [tex]x=80.3](https://tex.z-dn.net/?f=x%3D%20cos%5E%7B-1%7D%28%20%5Cfrac%7B6.5%7D%7B38.5%7D%29%20%5Btex%5Dx%3D80.3)
5} )}[/tex] to one decimal place
The angle m<C is labeled x
To work out the size of x, we use the cosine rule