Step-by-step explanation:
3x+9+4x-3+8x-6=180
15x=180
x=12
angle 1= 3x+9=36+9=45°
angle 2=4x-3=48-3=45°
angle 3=8x-6=96-6=90°
1) it's right triangle
2) it's isosceles triangle
Answer:
x
= 1/3, x=-1
Step-by-step explanation:please mark brainliest 0.0
3
Use the formula below to find right angle triangle
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