THE THREE ANGLES OF A TRIANGLE IS (2X)DEGREE, ( 4X - 7 ) DEGREE(5X-11) DEGREE FIND THE VALUE OF X .
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Answer:
X is equals to 30 degree
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Step-by-step explanation:
Sum of all the angles of ∆ = 180°
- ( 2x ) + ( 4x - 7 ) + (5x - 11) = 180°
- 2x + 4x - 7 + 5x - 11 = 180 °
- 11x - 18 = 180°
- 11x = 180 + 18°
- 11x = 188°
- x = 188/11
- x = 17.09° ( approx ).
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