Geometry/Trig

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In triangle ABC, A is a right angle, and m b=45 degrees.


What is the length of BC? If your answer is not an integer, leave it in simplest radical form.
a. 16 ft
b. 16 sq 2 ft
c. 16 sq 3 ft
d. 32 ft

I'm really confused as to how to do this... Could someone please explain and show me how to enter the whole calculation into my calculator? I don't really know how to make the whole sin thing plug in the correct ways and where to put my numbers. Thanks!!

  • Geometry/Trig -

    since the acute angles are 45°, the two legs are both 16 (a fact you left out)

    so, the hypotenuse is

    √(16^2 + 16^2) = 16√2

  • Geometry/Trig -

    Ok thank you!!

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