The lines are perpendicular
Answer:
I think the isosceles triangle
Step-by-step explanation:
Because it has fewer sides and cannot be put in a "Tile" pattern. Not really sureI hope this helps. :)
<h2>
It is an obtuse angle.</h2>
Step-by-step explanation:
Obtuse: An obtuse angle is an angle more than
but less than
.
Example :
,
etc.
Acute : An acute angle is an angle less than 
Example :
,
etc.
Straight : A straight angle is
.
Right: A right angle is
.
Since the angle is more than
but less than
. So, it is an obtuse angle.
Answer:
-8 is the solution
Step-by-step explanation:

