73.3k views
3 votes
I need help solving for x

I need help solving for x-example-1
User Cornernote
by
6.2k points

1 Answer

3 votes

Answer:


x=63.0^o

Explanation:

Given


RS = 35


RT = 77

The attached triangle

Required

Solve for x

The relationship between x, RS and RT is:


\cos(x) = (RS)/(RT)

This gives:


\cos(x) = (35)/(77)


\cos(x) = 0.4545

Take arc cos of both sides:


x = \cos^(-1)(0.4545)


x=63.0^o --- approximated

User Soraz
by
7.3k points
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