Find x + y + z + w
Ncert Maths
Ch - 3
Ex 3.1
Question 7 (b)
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x =180°-120°
x = 60°
y =180°-80°
y=100°
z=180°-60°
z=120°
Let one angle of quadrilateral be a
a+120°+80°+60°=360°( sum of angles of quadrilateral is 360° )
a+260°=360°
a=100°
a+w=180°
100°+w=180°
w=80°
x+y+z+w=60°+100°+120°+80°
x+y+z+w = 360°
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