PRETTY PLEASE HELP ME! this is 4 a test and i’m rlly struggling :/

Mathematics

1 answer:

igor_vitrenko [27]3 years ago

7 0

Alright here we go
First we need to find the upper angle by doing 180 - 143 = 37. Because it’s a straight line.
Second we need to find angle ADC
a triangle has 180 degrees, and we have 38 and 37.
180 - (38+37) = 105
then we find what the question wants:
180 - 105 = 75 degrees

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