SOLUTION: Colin, Nick and Jack are throwing a baseball around. Colin is 90 feet from Nick, Nick is 80 feet from Jack and Jack is 110 feet from Colin. When Jack looks at the other two what i

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Question 1180986: Colin, Nick and Jack are throwing a baseball around. Colin is 90 feet from Nick, Nick is 80 feet from Jack
and Jack is 110 feet from Colin. When Jack looks at the other two what is angle between his lines of sight?
Include a diagram. Answer to the nearest degree.
Found 2 solutions by ikleyn, Solver92311:
Answer by ikleyn(52803)   (Show Source): You can put this solution on YOUR website!
.

Use the Cosine Law.



Or, alternatively, calculate the area of the triangle using the Heron's formula;


Then use another formula for the triangle area  S = , where "a" and "b" are any two sides 

and  is the included angle.

You are instructed - hence, you know the way.

The rest is on you.



Answer by Solver92311(821)   (Show Source): You can put this solution on YOUR website!





John

My calculator said it, I believe it, that settles it

From
I > Ø
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