Sunday
March 26, 2017

Post a New Question

Posted by on .

the three angles of a triangle are 3x,x+10, and 2x-40. Find the size of the smallest angle in a triangle

  • algebra - ,

    recall that the sum of the interior angles of any triangle is 180 degrees,, thus:
    3x + (x+10) + (2x-40) = 180
    6x - 30 = 180
    6x = 210
    x = 35
    therefore, the angles are:
    3x = 3(35) = 105
    x+10 = 35+10 = 45
    2x-40 = 2(35)-40 = 30
    ..and the smallest angle is 30 degrees

    so there,, :)

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question