Question

What’s number 2 ??? Please help

Answer 1

Answer:

c

Step-by-step explanation:

i think

Answer 2

Answer:

$CB = 7.5$

Step-by-step explanation:

Well, if the question gave you a right triangle, an angle, and the side length of the side opposite to that angle, this question should scream (TRIGONOMETRY). So tap into your brain and think about how you can use sin, cosine, and/or tangent to solve the problem.

So notice that the question is asking for the side length of CB, the side adjacent to the angle C (53 degrees). Since we already have the length of the side opposite to C (10), we can use tangent, because we know the value of tan58 if we put it in a calculator, and we know the length opposite to C.

$tan(53) = 10/CB$

$CB * tan(53) = 10$

$CB = \frac{10}{tan(53)}$

$CB = \frac{10}{1.327} = 7.5359...$