NCERT | Interpreting Patterns | Intext | Pg.153 | Q4 — task. Mathematics CBSE, Class 8 New.

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எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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Find the area of the (interior) shaded region in the figure below. All four rectangles have the same dimensions \(rs\).

pattern - 3_1.PNG

The area of the shaded region is given by

${(r + s)}^{2}$
${(r + 2 s)}^{2}$
${(r - s)}^{2}$
${(r - 2 s)}^{2}$

Which among the following two expressions are equal?

${(r - s)}^{2}$
${(r - s)}^{2} - 4 r s$
${(r + s)}^{2} - 4 r s$
${(r + s)}^{2}$

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