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I need help finding the answer. I don't need astep-by-step explanation just the answer please.Thank you.

I need help finding the answer. I don't need astep-by-step explanation just the answer-example-1
User Ant P
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4.9k points

1 Answer

1 vote

Find a using the theorem of sinus:


\sin(57°)=(a)/(29)
a=\sin(57)*29=24.32

Now with the Pythagoras theorem find b:


a^2+b^2=29^2
24.32^2+b^2=29^2
b^2=29^2-24.32^2
b^2=841-591.46
b=√(841-591.46)=√(249.53)
b=15.79

Finally, find B knowing that the sum of all internal angles of a triangle is equal to 180°:


B=180-57-90=33°

User Jafrin
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4.8k points