R/ r+ 15 = 3/8
Cross multiply: top of one side multiplied by bottom of other side:
R x 8 = 3 x r+ 15
Simplify:
8r = 3r + 45
Subtract 3r from both sides:
5r = 45
Divide both sides by 5:
R = 9
Answer:
104°
Step-by-step explanation:
The straight line for forms an angle of 180°
Therefore,
The office of a and the one that I have a lot to say I have no clue how I am and
You look at the triangle...
The sides there are four
The base is the bottom
...