Geometry/Trig

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!!

asked by Gina
  1. 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

    posted by Steve
  2. Ok thank you!!

    posted by Gina

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