I need helpp its my final exam

Mathematics

2 answers:

Mashcka [7]3 years ago

7 0

Answer:

hey i believe that your answer is A. without having to do the math if you look at it you can tell that its bigger then options B and C so those are not it. and it is to small to be D. so with that said your answer is A have a nice dy and good luck!

Step-by-step explanation:

dem82 [27]3 years ago

7 0

This is the exterior angle theorem meaning the two angles in the triangle is equal to the outer angle of the angle. So you would set your equation to (3x+4) + 58 = 12+8x

Solve for x then plug the x back into the 12+8x equation to get your angle

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