Math, asked by crankybirds30, 5 hours ago

solve plz
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Answered by Anonymous
2

•\huge\bigstar{\underline{{\red{A}{\pink{n}{\color{blue}{s}{\color{gold}{w}{\color{aqua}{e}{\color{lime}{r}}}}}}}}}\huge\bigstar•

IN ATTACHMENT

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\huge{\textbf{\textsf{{\purple{have \: a \: great \: day \: }}{\pink{ahead}}}}}

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Answered by devanshu1234321
1

AC^2=AB^2+BC^2       [pythogorus theorem]

AC^2=9^2+40^2\\\\AC^2=81+1600\\\\AC^2=1681\\\\AC=\sqrt{1681} \\\\AC=41m

Now,

Area of figure ABC=\frac{1}{2}b*h\\

(b)Base=40 m and h(height)=9m

\frac{1}{2}*40*9\\\\==>20*9\\\\==>180m^2

Area of figure ACD= _\sqrt{s(s-a)(s-b)(s-c)}

S=Semi perimeter=42 m

Putting value we get=_\sqrt{42(42-41)(42-15)(42-28)}\\\\\\

==>_\sqrt{27*14*27}

==>_\sqrt{15876}

==>126m^2

So Figure ABC has large area ,so students who cleaned Figure ABC did more cleanliness .

Total area=180m^2+126m^2

==>_3_0_6_m_^2

Total area= _3_0_6_m_^2

#devanshu1234321

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