Angles

rachelmaddie said:
I just showed my work.
Click to expand...
Yes, but based on your replies #12 and #16 it appears you are not yet comfortable with identifying those angles. The next problem may have a slightly different diagram and you'll make a similar error.
 
lev888 said:
Yes, but based on your replies #12 and #16 it appears you are not yet comfortable with identifying those angles. The next problem may have a slightly different diagram and you'll make a similar error.
Click to expand...
To clarify, would those angles be identified as complementary?
 
rachelmaddie said:
In the figure the two angles are complementary whose angles add up to 90 degrees.
Set up an equation to solve for x.
50 + (3x+4) = 90
3x + 54 = 90
3x = 36
x = 12
Substitute the value of x to prove the equation is true.
50 + (3(12)+4) = 90

Is this correct?
Click to expand...
Yes, the algebra is correct, but what is worrying me (and I think lev) is whether you understand why the angles are complementary in the first place. I apologize if I am incorrect, but you seem to be guessing rather than using the facts of geometry to guide you in setting up your equations.
 
rachelmaddie said:
They are perpendicular and intersect at a 90 degree angle?
Click to expand...
Yes. But why do all your answers end with a question mark? If you are not sure about something, look up definitions, examples, etc, then answer. But please don't answer with a question! Sorry, couldn't take it any more.
Do you see that all 4 angles are 90 degrees? Did you initially think that they were 180? I'm trying to understand where 180 came from.
So, if all 4 are 90, do you see that this is exactly the same situation as the previous problem?
 
lev888 said:
Yes. But why do all your answers end with a question mark? If you are not sure about something, look up definitions, examples, etc, then answer. But please don't answer with a question! Sorry, couldn't take it any more.
Do you see that all 4 angles are 90 degrees? Did you initially think that they were 180? I'm trying to understand where 180 came from.
So, if all 4 are 90, do you see that this is exactly the same situation as the previous problem?
Click to expand...
I’m not sure if my explanation is correct.
 
rachelmaddie said:
In the figure the two angles are complementary whose angles add up to 90 degrees.
Set up an equation to solve for x.
50 + (3x+4) = 90
3x + 54 = 90
3x = 36
x = 12
Substitute the value of x to prove the equation is true.
50 + (3(12)+4) = 90

Is this correct?
Click to expand...
Yes.
 
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