Mathematics
Grade-8
Easy

Question

The measure of angles m, n are ____________ and ___________.

  1. angle m equals 45 degree text  and  end text angle n equals 45 degree
  2. angle m equals 60 degree text  and  end text angle n equals 60 degree
  3. angle m equals 35 degree text  and  end text angle n equals 45 degree
  4. angle m equals 60 degree text  and  end text angle n equals 60 degree

hintHint:

In triangle XZT, XZ = ZT
So, angle T X Z = angle Z T X
Hence, angle m space= 35
Now, in triangle XZT,
The sum of all the interior angles of a triangles is 180.

The correct answer is: angle m equals 35 degree text  and  end text angle n equals 45 degree


    In triangle XZT, XZ = ZT
    So, angle T X Z = angle Z T X
    Hence, angle m space= 35

    Now, in triangle XZT,
    The sum of all the interior angles of a triangles is 180.
    rightwards double arrow angle X Z T plus 35 degree plus 35 degree equals 180 degree
    rightwards double arrow    angle X Z T equals 180 degree minus 70 degree
    rightwards double arrow    angle X Z T equals 110 degree
    In triangle XYZ, angle X Z T is the exterior angle, and angle n and angle y x z are the remote interior angles.
    So, 110 degree equals angle n plus 65 degree
angle n equals 110 degree minus 65 degree
angle n equals 45 degree
    So, the measure of angle n = 45

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