CBSE /Class 9
Maths MCQ Based On Area of quadrilateral
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CBSE Class 9 Maths Area of quadrilateral
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Area = and a,b, and c are sides of the triangle and
Find the area of the hall and then divide the area by the number of people.
A = √{s(s-a)(s-b)(s-c)}
s = \\(a +b + c\\over 2\\)
\\(\\sqrt{154}=12.410\\)
A = √{s(s-a)(s-b)(s-c)}
s = \\(a +b + c\\over 2\\)
A = √{s(s-a)(s-b)(s-c)}
s = \\(a +b + c\\over 2\\)
\\(s=\\frac{a+b+c}{2} \\)
\\(area=\\sqrt{s(s-a)(s-b)(s-c)}\\)
think carefully
Find each side using the perimeter.
Use the Heron's formula
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