Maths 11th Grade

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The difference between the two acute angles of a right-angled triangle is 2(pie)/5 radians. Express the angles in degrees?? How to Solve it

  • Maths 11th Grade -

    2π/5 radians = 72°

    so let one angle be x
    then the other is x+72

    we know x + x+72 = 90
    2x = 18
    x = 9

    So the two angles are 9° and 81°

  • Maths 11th Grade -

    x+9+81=90
    x+90=90
    x=90-90
    x=o

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