SOLUTION: The sum of the measures of the angles of a triangle is 180°. The second angle of a triangle is twice the measure of the first angle. The third angle is 20 more than 5 times the fi

Question 1202051: The sum of the measures of the angles of a triangle is 180°. The second angle of a triangle is twice the measure of the first angle. The third angle is 20 more than 5 times the first. What are the measures of the three angles?
Found 2 solutions by ikleyn, josgarithmetic:
Answer by ikleyn(52781) (Show Source): You can put this solution on YOUR website!
.

Let x be the measure of the first angle, in degrees. Then the measure of the second angle is 2x degrees, the measure of the third angle is (5x+20). An equation for the sum of angles is x + 2x + (5x+20) = 180 degrees. From this point, complete the solution on your own.

You are fully instructed.

Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!

firstangle u secondangle 2u thirdangle 5u+20 SUM 180

You understand, and do the rest?
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