Question 305846
Set-Up:
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The interior angles of a triangle add up to 180
Equation 1: {{{X + (X + 1) + (X + 2) = 180}}}
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Solution:
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{{{X + (X + 1) + (X + 2) = 180}}}
Combine like terms
{{{3X + 3 = 180}}} Subtract 3 from both sides
{{{3X = 177}}} Divide both sides by 3
{{{highlight(X = 59)}}}
Plug 59 into the equation for X
{{{X + (X + 1) + (X + 2) = 180}}}
{{{59 + (59 + 1) + (59 + 2) = 180}}}
{{{59 + 60 + 61 = 180}}}
{{{180 = 180}}}
59, 60 & 61 are your three angles