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geometry

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the exterior angle 120degre and one interior angle 45degre of each triangle are given.find the other interior opposite angle and the third angle of each triangle.

  • geometry -

    The interior angle associated with the 120 degree exterior angle is its supplement: 60 degrees. With interior angles of 45 and 60 degrees, the third interior angle must be 180 - 105 = 75 degrees

  • geometry -

    See your first post.

  • geometry -

    Thanks drwls. I could not understand this post at all. :)

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