Question Number 65153 by Tawa1 last updated on 25/Jul/19
Commented by Tony Lin last updated on 25/Jul/19
Commented by Tawa1 last updated on 25/Jul/19
$$\mathrm{God}\:\mathrm{bless}\:\mathrm{you}\:\mathrm{sir} \\ $$
Answered by JDamian last updated on 25/Jul/19
$$\mid\mathrm{BF}\mid=\mid\mathrm{KE}\mid=\mid\mathrm{AD}\mid=\mathrm{2}\:{cm} \\ $$$$\mid\mathrm{DF}\mid=\mid\mathrm{AB}\mid−\mid\mathrm{AD}\mid−\mid\mathrm{BF}\mid=\mathrm{6}−\mathrm{2}−\mathrm{2}=\mathrm{2}\:{cm} \\ $$