In triangle ABC, A is a right angle and mB = 45°. Find BC. If your answer is not an integer, leave it in simplest radical form. Diagram is not drawn to scale.
https://www.connexus.com/content/media/456845-2242011-81006-AM-928943466.png

Question

In triangle ABC, A is a right angle and mB = 45°. Find BC. If your answer is not an integer, leave it in simplest radical form. Diagram is not drawn to scale.
https://www.connexus.com/content/media/456845-2242011-81006-AM-928943466.png

directrix · Answer

BC = 12 times the square root of 2 because ...

directrix · Answer

...triangle ABC is a right isosceles triangle. Think 45-45-90 theorem

A leg of the triangle is 12 and the hypotenuse of a 45-45-90 theorem is square root 2 times a leg.