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NNADVOKAT [17]
3 years ago
5

What method do i use to solve this?

Mathematics
1 answer:
skelet666 [1.2K]3 years ago
8 0
Answer: x=20
all angles in the triangle are 180 degree, so:
2x+3x+4x=180
9x=180
divide both sides by 9
x= 20
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