Π/6+2πk
5π/6+2πk
you need to factor and use trig identities
Answer:
<h2>x = 12</h2>
Step-by-step explanation:
ΔADC and ΔCDB are similar (AA). Therefore the sides are in proportion:

We have AD = 16, DC = x, DB = 9. Substitute:
<em>cross multiply</em>

Answer:
Basically, the measure of an exterior angle of a triangle is equal to the sum of the measures of the remote interior angles. It's significance for solving angles of a triangle is the measure of angle D is equivalent to the sums of A & B.
Step-by-step explanation: