What is the measure of angle ACB?
A
108°
145°

Svetlana's hair is 4 4 centimeters ( cm cm) long. her hair grows 1 . 5 cm 1.5cm per month. svetlana wants her hair to be less than 1 6 cm 16cm long. write an inequality to determine the number of months, m m, svetlana can allow her hair to grow so that it is less than 1 6 cm 16cm long.

If value of cos330° is √3/2 then find tan165°.

Having a hard time understanding this question (see attachment).