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ΔABC =ΔDEF having area of 64 …

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ΔABC =ΔDEF having area of 64 and 81 and D= 9 find AB

Posted by Durga Appa 6 years, 10 months ago

CBSE > Class 10 > Mathematics

5 answers

Ram Kushwah 6 years, 10 months ago

DE=9,AB=?

Now as area is different so triangle cannot be congruent so are similar

{tex}\begin{array}{l}Now\;\triangle ABC\;\sim\triangle DEF\\\frac{ar(\triangle ABC)}{ar(\triangle DEF)}=\frac{AB^2}{DE^2}\\\frac{64}{81}=\frac{AB^2}{9^2}\\AB^2=64\\AB=8\end{array}{/tex}

0Thank You

Durga Appa 6 years, 10 months ago

Yes it mean congurent

0Thank You

Lol No 6 years, 10 months ago

What yes....congurent ya similar???

1Thank You

Durga Appa 6 years, 10 months ago

Yes

1Thank You

Lol No 6 years, 10 months ago

By " = " do you mean congurent or similar

1Thank You

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