Must be simplified. don;'t really know if we should do distributive property
You didn't supply a list. The so-called rigid transformations of translation, rotation and reflection create congruent triangles.
Generally it's dilation by a factor about a point is preserves similarity but not congruency. Any transformation which includes such scalings but is otherwise rigid also preserves similarity but not congruency.
Formula to find the arc length is:
Where, s= arc length,
r = radius of the circle
\theta = central angle in degrees.
According to the given problem, \theta= 150 and r =2.4.
So, first step is to plug in these values in the above formula to get the arc length.
=
So, arc length is 
.
A cold wave - a series of cold days in terms of weather; a physical wave that is given by someone with a "cold" demeanor.
A fair day- a day with nice, mild weather; making a modest amount of money in a days work.
hope those help.
2u-2u-4uequals 2u-2u+3+u+32
