Question

if the angles of a quadrilateral are (x-15°),x, (x+20°) and (2x+5°), find the greatest angle of a quadrilateral........fast​

Answer 1

x-15 + x + x+20 + 2x+5 = 360(angle sum property of quadrilateral)

5x +10=360

5x = 360-10

5x = 350

x = 350/5= 70

x-15 = 70-15= 55

x =70

x+20= 70+20=90

2x+5= 2×70+5= 145

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