Answer:
The answer A
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given
The attached triangle
Required
Length AB
To do this, we make use of sine law which is represented as:

So, we have:

Make AB the subject



Answer:
t53
Step-by-step explanation:
Answer:
5/12
Step-by-step explanation:
Answer:
83
Step-by-step explanation:
Angle 7 & angle 8 are supplementary angles, meaning they add up to 180º.
Angle 8 & angle 12 are corresponding angles, so they are equal.
If we solve for the measure of angle 8, it will be the same answer as angle 12.
Therefore, angle 7 & angle 12 add up to 180º.
80 + (x+17) = 180
Solve:
(80-80) + (x+17) = 180-80
X+17 = 100
X + (17-17) = 100-17
X = 83