Lamar wanted to explain why the measure of angle 5 is equal to the sum of the measures of angles 1 and 3. which geometry concepts should be used in lamar’s work? a. supplementary angles and the sum of the measures of interior angles of a triangle b. complementary angles and the sum of the measures of interior angles of a triangle c. supplementary angles and vertical angles d. the sum of the measures of interior angles of a triangle and vertical angles

In this question, angle 5 and angle 2 are linear pair. And angles of linear pair are supplementary angles .

Therefore

And sum of interior angles of a triangle is 180 degree, that is

SInce both the equations have 180 in the right side, left side of both equations are equal too . That is

Which gives

So the correct option is A .

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easy its decreasing

step-by-step explanation:

because its top point is at the to of the graph on the left side (atleast from the veiw i see it) now if that top point wast in the lower part of the graph it would be increasing hope this have a nice day