B= 6 add 15 to 51 then divide by 11
Answer:
A vertex on polygon ABCD and its corresponding vertex on polygon AGHBGHCGHDGH are always equidistant from the line of reflection. Each of the four line segments (, for example) is perpendicular to and cut in half by the line of reflection, . This means that is a perpendicular bisector of those line segments.
Step-by-step explanation:
we have a rule in forming triangle.
that sum of any two sides is must be greater than the third side.
here we have three sides measure 9m,9m, and 9m
we have to add up any two sides here .
so 9+9=18 .
where 18 is greater than the third side 9.
so it is possible to form triangle with the given length sides.
Answer:
x = 45
Step-by-step explanation:
Well here's what we know:
2x + 45 + x = 180
Solve from there:
3x = 135
x = 45
You can plug it back in to check:
2(45) + 45 + 45 = 180
90 + 80 = 180, so it checks out :)
