Question and Answers Forum

All Questions      Topic List

Mensuration Questions

Previous in All Question      Next in All Question      

Previous in Mensuration      Next in Mensuration      

Question Number 187721 by Mingma last updated on 20/Feb/23

Answered by mr W last updated on 21/Feb/23

Commented by mr W last updated on 21/Feb/23

due to similarity of triangles:  (a/d)=(u/y)  similarly  (e/b)=(w/u)  (c/f)=(y/w)  ⇒(a/d)×(e/b)×(c/f)=(u/y)×(w/u)×(y/w)=1  ⇒((ace)/(bdf))=1  ⇒ace=bdf ✓

$${due}\:{to}\:{similarity}\:{of}\:{triangles}: \\ $$$$\frac{{a}}{{d}}=\frac{{u}}{{y}} \\ $$$${similarly} \\ $$$$\frac{{e}}{{b}}=\frac{{w}}{{u}} \\ $$$$\frac{{c}}{{f}}=\frac{{y}}{{w}} \\ $$$$\Rightarrow\frac{{a}}{{d}}×\frac{{e}}{{b}}×\frac{{c}}{{f}}=\frac{{u}}{{y}}×\frac{{w}}{{u}}×\frac{{y}}{{w}}=\mathrm{1} \\ $$$$\Rightarrow\frac{{ace}}{{bdf}}=\mathrm{1} \\ $$$$\Rightarrow{ace}={bdf}\:\checkmark \\ $$

Commented by Rupesh123 last updated on 21/Feb/23

Nice work, bro!

Terms of Service

Privacy Policy

Contact: info@tinkutara.com