SOLUTION: Hello, can you please show me how to work this problem? Thank you so much in advance. I am just starting Trigonometry class and I don't have a textbook just yet since it just start
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Question 1160781: Hello, can you please show me how to work this problem? Thank you so much in advance. I am just starting Trigonometry class and I don't have a textbook just yet since it just started yesterday. Based on some problems that I have seen online I have learned that the sum of the measures of the angles of any triangle is 180 degrees.
Find the measure of each marked angle.
X degree=? degree
(X+50)degree =? degree
(180-3x)degree=? degree
(Simplify your answers. Type an integer or a fraction.)
Found 2 solutions by josgarithmetic, saw:
Answer by josgarithmetic(39627) (Show Source): You can put this solution on YOUR website!
What is the EXACT problem description? One could only guess that you have three angles of a triangle, X, X+50, 180-3X. Just use the property you mentioned and solve...
If you do that, you should find the angle measures to be
.
Answer by saw(34) (Show Source): You can put this solution on YOUR website!
Solution.
Since the condition given is x+(x+50)+(180-3x) = 180
x+(x+50)+(180-3x) = 180
Remove parentheses
x+x+50+180-3x = 180
Collect the like terms
-x+50+180 = 180
Add the numbers
-x+230 = 180
Move constant to the right side of the equation and change its sign
-x = 180-230
Calculate the difference
-x = -50
Multiply both sides of the equation by -1
-x*(-1) = -50*(-1)
Any expression multiplied by -1 equals its opposite
x = -50*(-1)
Any expression multiplied by -1 equals its opposite
x = 50
x+50
Use substitution
50+50 = 100
180-3x
Use substitution
180-(3*50)
180-150 = 30
So the angels of the triangle is 50 degree, 100 degree, and 30 degree.
Check-----
x+(x+50)+(180-3x) = 180
Hope it's helpful for you!
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