math help? connections?

Question

anonymous · Answer

mathstudent55 · Answer

1. is correct

anonymous · Answer

i knew that one was gonna be right, but the other ones confuse me so much

mathstudent55 · Answer

2. the angles have to add to 90 degrees to make right angles at the corners

mathstudent55 · Answer

3. if you read the problem, you notice that only Adams, Bertha and Charles are mentioned. We don't anything about the other two streets.

anonymous · Answer

so for 2 would it be a=30 and b=60 since those add up to 90?

mathstudent55 · Answer

Correct

mathstudent55 · Answer

Now look at 3.

mathstudent55 · Answer

Read my explanation about 3. above.

anonymous · Answer

bertha is parallel to charles is correct

cicilybailey14 · Answer

@mathstudent55  I was confused on this too...you actually helped me out lol

mathstudent55 · Answer

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mathstudent55 · Answer

Adams is a perpendicular to two streets. What can you tell about Bertha and Charles?

mathstudent55 · Answer

@Cicilybailey14 Thanks for letting me know. I'm glad I was able to help you.

mathstudent55 · Answer

Oh, I see, you got it already. Yes, Bertha is parallel to Charles. you are correct.
Now let's move on to 5.

mathstudent55 · Answer

The best way to deal with a problem like this is to draw it.

anonymous · Answer

wait, is 3 and 4 bertha is perpendicular to charles?

mathstudent55 · Answer

I started it for you.
Here is line a.
Now you need b perpendicular to a. Use my drawing, and add b perpendicular to a.
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mathstudent55 · Answer

Wait. I skipped 4. Let me go back to it.

mathstudent55 · Answer

For 3. Bertha is parallel to Charles.
Now let's do 4.

anonymous · Answer

ok

mathstudent55 · Answer

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anonymous · Answer

wouldnt adams ct be perpendicular to edward rd as well

mathstudent55 · Answer

Yes.
If a line is perpendicular to one of two parallel lines, it is perpendicular to both parallel lines.

anonymous · Answer

now to 5

mathstudent55 · Answer

Notice that choices b, c, d mention Dana and Berth which we are not told anything about in this problem. The answer is A.

mathstudent55 · Answer

Ok, problem 5.
Let me look above for what I already did.

anonymous · Answer

|dw:1414787847724:dw| would this be how its done

mathstudent55 · Answer

The best way to deal with a problem like 5 is to draw it.

anonymous · Answer

you said add the perpendicular line?

mathstudent55 · Answer

Good, but make b longer going below a also.

anonymous · Answer

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mathstudent55 · Answer

Excellent. Now we add the little perpendicular symbol to remind us the lines are given as perpendicular.
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mathstudent55 · Answer

Now we add a line c, which is perpendicular to b.
Draw line c below line a, just because it fits better in our drawing.

anonymous · Answer

like this or would you like it at the tip of b |dw:1414788089505:dw|

mathstudent55 · Answer

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