Please solve question no. 68

Asked by vikasg13.hardware | 29th Dec, 2017, 11:25: AM

Expert Answer:

begin mathsize 16px style In space triangle ALO space and space triangle DMO comma
angle ALO equals angle DMO equals 90 degree
angle AOL equals angle DOM space space left parenthesis VOA right parenthesis
rightwards double arrow triangle ALO tilde triangle DMO
rightwards double arrow AL over DM equals AO over DO
Now comma space fraction numerator straight A left parenthesis triangle ALO right parenthesis over denominator straight A left parenthesis triangle DMO right parenthesis end fraction equals fraction numerator begin display style 1 half end style cross times BC cross times AL over denominator begin display style 1 half end style cross times BC cross times DM end fraction equals AL over DM equals AO over DO end style

Answered by Rashmi Khot | 30th Dec, 2017, 03:35: PM