उस त्रिभुज का क्षेत्रफल ज्ञात कीजिए जिसके शीर्ष (1,-1), (-4,6) (-3,-5)
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Answered by
10
Answer:
24
Step-by-step explanation:
[X1(y2-y1)+X2(y3-y1)+X3(y1-y2)]1/2
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