7th Class Mathematics Sample Paper Mathematics Sample Paper - 7

  • question_answer
          Find the angles of a triangle which are in the ratio 2:3:5.

    Answer:

    Let the angles be 2x, 3x and 5x \[\therefore \]      \[2x+3x\text{+}5x=180{}^\circ \] \[l0x=180{}^\circ \]      \[x=18{}^\circ \] Angles are 36, 54, 90.            


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