Question

in the given figure, if DE||BC, then find the length of AC​.

Answer 1

AD/DB=AE/EC

2/3=5/EC

2×EC=5×3

EC=7.5cm

Now,

AC=AE+EC

=5+7.5

=12.5cm

AC=12.5cm

Answer 2

Answer:

$ad \div db = ae \div ec \\ 2 \div ec = 5 \times 3 \\ ec = 7.5 \\ \\ \\ \: now \\ ac = ae + ec \\ 5 + 7.5 \\ = 12.5cm \\ ac = 12.5cm$

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