![ABC is an isosceles triangle in which AC BC AD and BE are respectively two altitudes to sides BC and... ABC is an isosceles triangle in which AC BC AD and BE are respectively two altitudes to sides BC and...](https://d39460vivz6red.cloudfront.net/questions/m-bb-ncertexemplar9-chp7-ex4-q9/images/1_1599029542931.png)
ABC is an isosceles triangle in which AC BC AD and BE are respectively two altitudes to sides BC and...
![The semi-lattice X ¼ fa, b, c, d, ab, ac, ad, bc, bd, cd, abc, abd,... | Download Scientific Diagram The semi-lattice X ¼ fa, b, c, d, ab, ac, ad, bc, bd, cd, abc, abd,... | Download Scientific Diagram](https://www.researchgate.net/profile/David-Barner/publication/30950104/figure/fig2/AS:667818035015680@1536231635084/The-semi-lattice-X-14-fa-b-c-d-ab-ac-ad-bc-bd-cd-abc-abd-acd-bcd-abcdg-Note_Q320.jpg)
The semi-lattice X ¼ fa, b, c, d, ab, ac, ad, bc, bd, cd, abc, abd,... | Download Scientific Diagram
![Comparison of the linear distances AB, AC, AD, BC, BD and CD measured... | Download Scientific Diagram Comparison of the linear distances AB, AC, AD, BC, BD and CD measured... | Download Scientific Diagram](https://www.researchgate.net/publication/317414998/figure/tbl1/AS:670459129524261@1536861321836/Comparison-of-the-linear-distances-AB-AC-AD-BC-BD-and-CD-measured-in-the-master-model_Q320.jpg)
Comparison of the linear distances AB, AC, AD, BC, BD and CD measured... | Download Scientific Diagram
![If a : b = c : d , then prove that (a +b)/(a - b) = sqrt(ac + ad + bc + bd )/sqrt(ac - ad - bc + bd). If a : b = c : d , then prove that (a +b)/(a - b) = sqrt(ac + ad + bc + bd )/sqrt(ac - ad - bc + bd).](https://d10lpgp6xz60nq.cloudfront.net/web-thumb/1410325_web.png)