For the same isosceles triangle (base $6$ cm, equal sides $5$ cm), the area is —

Question

Accepted Answer

$12$ cm$^2$

Answer

$10$ cm$^2$

Answer

$15$ cm$^2$

Answer

$20$ cm$^2$

For the same isosceles triangle (base 666 cm, equal sides 555 cm), the area is —