Basically, you are looking for the ARC SINE of .994 which is
83.72 Degrees
You could also use an online calculator:
http://www.1728.org/trigcalc.htm
All the interior angles of a triangle always add up to 180 degrees.
3x + (2x + 20) + (4x - 20) = 180
3x + 2x + 20 + 4x - 20 = 180
3x + 2x + 4x + 20 - 20 = 180
10x = 180
x = 180/10
Therefore, x = 18
Answer choice B would result in no solution
Hope this helps ;)
It could be 3/2 or it could be 1 1/2
Answer:
1. 54
2. 5
Step-by-step explanation:
1. 18 x 3 = 54
2. 90/18 = 5
