3 years ago

I keep forgetting how to do these sighs

Mathematics

2 answers:

goblinko [34]3 years ago

8 0

If you plugged in and solved for x correctly, you should get 120°

trapecia [35]3 years ago

7 0

RSU+UST=RST
78+3x-12=6x+12
3x+66=6x+12
3x=54
x=18
108+12=120
∠RST=120°

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