That's going to depend on what the rest of it is.
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Supplementary angles add up to 180 degrees. If one angle = 130 degrees the other must be 180 - 130 = 50 degrees
130 degrees is the measure of the base angles of an isosceles triangle whose vertex has a measure of 50 degrees.
An obtuse angle
Yes.
Well, 40 degrees is already given.. And the angle "R" I assume has a box in its corner, that represents a 90 degree angle. as for I.E: "L" <-- is a 90 degree angle. so you add 40 + 90 = 130. In all triangles will always = 180 degrees. No if and's or but's about it. so you would take your 130 degrees subtract from 180 degrees, 130 - 180 = 50! and that will decipher your answer your looking for.