70553347
70553347
07-12-2020
Mathematics
contestada
what method do i use to solve this?
Respuesta :
kristen20200
kristen20200
07-12-2020
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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