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rosehayden21
11.10.2020 •
Mathematics
If line segments A and B are parallel, which of the following pairs of angles are not equal?
A)
and ![\angle7](/tpl/images/1810/7765/86930.png)
B)
and ![\angle 3](/tpl/images/1810/7765/afd7b.png)
C)
and ![\angle2](/tpl/images/1810/7765/a6884.png)
D)
and ![\angle6](/tpl/images/1810/7765/9b4c9.png)
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Ответ:
C: ∠6 and ∠2
Step-by-step explanation:
Step 1:
∠6 = ∠9 S.S. Int. ∠'s (Same Side Interior ∠'s)
Step 2:
∠9 + ∠2 = 180° Sum of line
Step 3:
∠9 ≠ ∠2
C: ∠6 and ∠2
Hope This Helps :)
Ответ:
Step-by-step explanation:
Hi there!
A)![m\angle11, m\angle7](/tpl/images/0797/0708/d5752.png)
B)![m\angle1, m\angle3](/tpl/images/0797/0708/29910.png)
C)![m\angle6, m\angle2](/tpl/images/0797/0708/8be2e.png)
D)![m\angle3, m\angle6](/tpl/images/0797/0708/62698.png)
We need to find which pairs are not equal.
We know that lines a and b are parallel. This means that line c is a transversal, and same with line d.
Let's start with A).
Are
and
equal?
Yes. This is true because when c is a transversal, angles 11 and 7 are alternate interior angles, meaning they're congruent, or equal. This is not the correct nswer choice as these angles are equal.
Are
and
equal?
Yes. When d is a transversal, angles 1 and 3 are called corresponding angles, which are always equal. Corresponding angles have 1 angle in between them.
Are
and
equal?
No. There is no reason that we can use to prove that
and
are equal. This means that C is the correct answer.
Are
and
equal?
Yes.
and
are called vertical angles. They share one vertice, or angle. Vertical angles are always congruent.
The correct answer is:
Hope this helps :)
Let me know if you have any questions!
Ответ:
(x-1)(x^2+5x-3)