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A triangle has one angle measuring 3X degrees the second angle measures 2X +20° and the third angle...
5 months ago
Q:
A triangle has one angle measuring 3X degrees the second angle measures 2X +20° and the third angle measures 4X -20° what is the value of X
Accepted Solution
A:
The sum of all 3 interior angles in a triangle is 180°.
so 3x+(2x+20)+(4x-20)=180
9x+20-20=180
9x=180
x=180/9
x=20