I think it’s C but I’m not too sure
Answer:
see explanation
Step-by-step explanation:
To prove that BC ≅ AD, that is that BC = AD
You would need to prove the lengths are the same.
Answer:
12
Step-by-step explanation:
x/2+4=10
-4 -4
________
x/2=6
(2/1)*(x/2)=(2/1)*(6)
________
x=12
I believe that the answer is 20. I am not entirely sure though.
Given:


To find:
The quadrant of the terminal side of
and find the value of
.
Solution:
We know that,
In Quadrant I, all trigonometric ratios are positive.
In Quadrant II: Only sin and cosec are positive.
In Quadrant III: Only tan and cot are positive.
In Quadrant IV: Only cos and sec are positive.
It is given that,


Here cos is positive and sine is negative. So,
must be lies in Quadrant IV.
We know that,



It is only negative because
lies in Quadrant IV. So,

After substituting
, we get





Therefore, the correct option is B.