Mathematics
Grade-8
Easy

Question

Find the measure of all the angles of the triangle.

  1. 34o
  2. 17o
  3. 21o
  4. 25o

hintHint:

The sum of all angles of the triangle is 180
4a+7+5a+6+a-3=180

The correct answer is: 17o


    the measure of all the angles of the triangle.

    4a+7+5a+6+a-3=180
    10a+10=180
    a+1=18
    a=18-1
    a=17

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