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Question Number 139998 by bramlexs22 last updated on 03/May/21

Commented by bramlexs22 last updated on 03/May/21

find the area of ΔABC

$$\mathrm{find}\:\mathrm{the}\:\mathrm{area}\:\mathrm{of}\:\Delta\mathrm{ABC} \\ $$

Answered by som(math1967) last updated on 03/May/21

△ADE∼△AEC  ∴(y/6)=((24)/y)⇒y=(√(6×24))=12  Area △ABC=(1/2)×BC×y  =(1/2)×48×12=288squnit

$$\bigtriangleup{ADE}\sim\bigtriangleup{AEC} \\ $$$$\therefore\frac{{y}}{\mathrm{6}}=\frac{\mathrm{24}}{{y}}\Rightarrow{y}=\sqrt{\mathrm{6}×\mathrm{24}}=\mathrm{12} \\ $$$${Area}\:\bigtriangleup{ABC}=\frac{\mathrm{1}}{\mathrm{2}}×{BC}×{y} \\ $$$$=\frac{\mathrm{1}}{\mathrm{2}}×\mathrm{48}×\mathrm{12}=\mathrm{288}{squnit} \\ $$

Commented by bramlexs22 last updated on 03/May/21

in diagram , where ΔADS?

$$\mathrm{in}\:\mathrm{diagram}\:,\:\mathrm{where}\:\Delta\mathrm{ADS}? \\ $$

Commented by som(math1967) last updated on 03/May/21

Sorry I wrote S insted E

$${Sorry}\:{I}\:{wrote}\:{S}\:{insted}\:{E} \\ $$

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