Atriangle is sitting on a horizontal line. the bottom left interior angle of the triangle is (9 + k) degrees. the exterior angle to the bottom left interior angle is (5 k - 3) degrees. what is the value of k? k = 28 k = 29 k = 31 k = 42

K=29

Step-by-step explanation:

Just reviewed answer on Edg

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.

the correct answer to your question is a. 4^4

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