Question Number 207528 by efronzo1 last updated on 18/May/24
Answered by cherokeesay last updated on 18/May/24
Answered by mr W last updated on 18/May/24
Commented by mr W last updated on 18/May/24
$${A}={B}\:{due}\:{to}\:{symmetry} \\ $$$${A}+{B}=\frac{{area}\:{of}\:{rectangle}}{\mathrm{2}}=\frac{\mathrm{20}×\mathrm{10}}{\mathrm{2}}=\mathrm{100} \\ $$$$\Rightarrow{A}=\frac{\mathrm{100}}{\mathrm{2}}=\mathrm{50}\:{cm}^{\mathrm{2}} \\ $$