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I need help with my math!!!

I Need Help With My Math class=

Sagot :

you apply the concept of vertical angles and 180-degree angle

add  43 and 74 to get 117 now subtract it by 180 you get 63 for angle 1

now since angle 1 and 2 are vertical they are both 63

now for angle 3 you add 63 plus 79 is 142 so,  we subtract 142 by 180

therefore, angle 3 is  38 degrees

remember angles cannot be negative at all!