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How to find the number of degrees of an isoceles triangle if 1 side is 115degess?

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How to find the number of degrees of an isoceles triangle if 1 side is 115degess?

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  1. it must be  

    "if  the sum of  two angles   is 115 degrees"

    side can not be in degrees

    1 base angle=115/2=?

    the third angle

    180-115=?


  2. ALL triangles have 180 in them, man you should really know that unless your 8 or something.

  3. 180 degrees in a triangle

  4. All triangles have 180°.  An isoceles triangle has two equal sides.  

    Since the two equal sides cannot measure 115° each (that would mean 230° between the two, thereby not making shape a triangle), the two equal sides would be the leftover angle (180 - 115) which is 65° for the remaining two angles.  Divide the remaining 65° by two for each angle and the answer is 32.5 °  (65/2 = 32.5).

    32.5 is the number of degrees of an isoceles triangle if one side is 115 degrees.


  5. There are 3 angles in a Triangle, and all three add up to 180 degrees.

    In an Isosceles triangle 2 sides and 2 angles are equal to each other.

    so given one side is 115... it is common sense that the other two angles must be less than 115 and equal to each other and all three angles add up to 180 degrees.

    Assuming A=115 the other two angles are equal to each other.... B=C

    A+B+C= 180 degrees

    115+B+B=180degrees

    115+2B=180 degrees

    2B=180-115

    2B= 65 degrees

    B = 32.5 degrees

    B = C = 32.5 degrees

    so

    B = 32.5 and C = 32.5 degrees


  6. it has 2 equal sides and a triangle is 180 degree all together so u have 65 degrees left and half it

    answer32.5

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