4. उस चतुर्भुज का क्षेत्रफल ज्ञात कीजिए जिसके शीर्ष, इसी क्रम में, (-4, -2), (-3, -5), (3,-2) और (2,3) हैं।
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we can divided चतुर्भुज in to त्रिभुज then we apply the formula of त्रिभुज का क्षेत्रफल =½(x2(y2-y3)+x2(y3-y1)+x3(y1-y2))
माना कि
(-4,-2)=x1,y1
(-3,-5)=x2,y2
(3,-2)=x3,y3
the formula
=½(x2(y2-y3)+x2(y3-y1)+x3(y1-y2))
½(-3(-5-(-2))+(-3)(-2-(-2))+3(-2-(-5))
½(
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hi bro
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