Okay so a triangle has 3 vertices therefore 3 angles and 3 sides.
Let's first first the other angle not mentioned.
30+40=70 180-70=110
So the other angle is 110°.
If all the sides are different then this is an scalene triangle Kevin drew since the side and angle measurements are different. Scalene triangles have no equal sides or angles, everything is different!!
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I hope that helps you out!!
Any more questions, please feel free to ask me and I will be glad to help you out!!
~Zoey
