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

1.	ΔABC =ΔDEF having area of 64 and 81 and D= 9 find AB
Answer» DE=9,AB=?Now as area is different so triangle cannot be congruent\xa0so 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} Yes it mean congurent What yes....congurent ya similar??? Yes By " = " do you mean congurent or similar

Discussion