The difference of first two angles is the same as the difference of last two angles find the angles
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Answer:
Angle= (2x-10),(x-5),(4x+20)
According to angle sum property in a Δ,
=> 2x-10+x-5+4x+20=180°
=> 7x + 5=180°
=> 7x = 180 - 5
=> 7x = 175
=> x = 175/7 = 25
Angle A= 2x - 10= 2×25-10= 40°.
Angle B= x -5= 25-5 = 20°.
Angle C= 4x + 20= 4×25+20= 120°.
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