the sum of angles of a triangle is 180 degree. if the three angles are (2x+15),75,(x+20) , then find the value of x
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Answered by
9
Answer: X = 23.3
Step-by-step explanation:
The sum of the angles of the triangle is 180
=> (2X + 15) + (75) + (x + 20) = 180
=> 2X + X + 75 + 15 + 20 = 180
=> 3X + 110 = 180
=> 3X = 180 - 110 = 70
=> X = 70 / 3 = 23.3
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