The angles of a triangle are x-40,x-20 and 1/2x-10. find the value of x.
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sum them to 180°
(x-40)+(x-20)+(x/2-10)=180
then get the value of x and put in all the three expressions.
(x-40)+(x-20)+(x/2-10)=180
then get the value of x and put in all the three expressions.
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