Question

help me please

Answer 1

@jamaica25

Answer 2

because the triangle ABC is similar to triangle DEF, so you can compare ABC to DEF by writing
\[\frac{ x }{ 3 }=\frac{ 21 }{ 9 }\]

Answer 3

Thus,
\[x = 3 \times \frac{ 21 }{ 9 }\]

Answer 4

Are you here @DJ3strella ??

Answer 5

yeah i am @gerryliyana