Problema Solution
In ΔABC, m∠ACB = 90°,
CD
⊥
AB
and m∠ACD = 45°. Find CD if BC=3
Answer provided by our tutors
Let CD=x.
Using the Pythagorean Theorem and the fact that ΔCDB is isosceles we have:
2x^2 = 3^2
x^2 = 3^2/2
x = 2.12 approximately
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