Exercise Problem XII — task. Mathematics CBSE, Class 9.

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

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$ABC$ is a triangle in which altitudes

$BE$ and

$CF$ to sides

$AC$ and

$AB$ are equal.

Show that

(i)

$∆ ABE ≅ ∆ ACF$

(ii)

$AB = AC$ , i.e.,

$ABC$ is an isosceles triangle

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20. Exercise Problem XII