Question Number 156571 by otchereabdullai@gmail.com last updated on 12/Oct/21
Answered by puissant last updated on 12/Oct/21
$$\mathscr{A}\:\:=\:\mathrm{100}−\left(\mathrm{30}+\mathrm{35}+\mathrm{6}\right)=\mathrm{100}−\mathrm{71} \\ $$$$\Rightarrow\:\mathscr{A}\:=\:\mathrm{29}\:{cm}^{\mathrm{2}} .. \\ $$
Commented by otchereabdullai@gmail.com last updated on 12/Oct/21
$$\mathrm{well}\:\mathrm{understood}\:\mathrm{am}\:\mathrm{much}\:\mathrm{grateful}\:\mathrm{sir} \\ $$$$\mathrm{thanks} \\ $$