Question

In ∆ABC, ∠A is a right angle and m∠B = 45°. Find BC.

Answer 1

17 sqrt 2

Step-by-step explanation:

trust me the length is 24.04163 which equals 17√2

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Answer 2

Explanation:

In ∆ABC, if <A is 90° and <B is 45° then hypotenuse is BC.

Now,

Cos B= base/height

Cos B= AB/ BC

BC= AB/cos 45°.