Q&A for How to Make Angles in Math Using a Protractor

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  • Question
    What are angles opening to the left called?
    Community Answer
    The type of angle is not determined by which way it opens. An angle is either acute, right, or obtuse, no matter which way it opens. All that matters is the size of the angle. For example, you can draw a 45 degree angle opening to the left, or opening to the right. Either way, it is an acute angle.
  • Question
    How do I use a protractor that doesn't have a hole?
    Donagan
    Top Answerer
    Use the outside, curved edge.
  • Question
    What about the angle that we want to make in the circle?
    Donagan
    Top Answerer
    If you're referring to a central angle, draw a diameter. Line up the bottom of the protractor with the diameter so that the midpoint of the protractor aligns with the center of the circle. Use the protractor to draw any central angle up to 180°, using another diameter (or radius) to complete the angle.
  • Question
    Are 3 sides (sss) congruent or not?
    Donagan
    Top Answerer
    Yes, if each side of a triangle is congruent with (the same length as) a side of another triangle, the two triangles are congruent.
  • Question
    How do I draw 180 degrees?
    Donagan
    Top Answerer
    A 180° angle forms a straight line. The vertex of the angle can be considered to be any point on that line with the rays of the angle extending out in both directions from the vertex.
  • Question
    How do I draw an obtuse angle?
    I_l1ke_gam3s
    Community Answer
    An obtuse angle is an angle that is greater than 90 degrees, but its smaller than 180 degrees.
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