D is a point
Asked by sonali221994 | 5th Feb, 2010, 01:48: PM
In quadrilateral, NDMB,
BND = 90,
NBM = 90,
BMD = 90, and hence
MDN = 90,
It could be a square or rectangle,
Hence DN = BM, DM = NB,
BDC, using Pythagorus's theorem,
DB2 + DC2 = BC2
DB2 + DC2 = (BM+MC)2
DB2 + DC2 = (DN+MC)2
DB2 + DC2 = DN2 + MC2 +2DN MC
DB2 - DN2 + DC2 - MC2 = 2DN MC
DM2 + DM2 = 2DN MC
DM2 = DN.MC
Regards,
Team,
TopperLearning.
Answered by | 7th Feb, 2010, 11:09: AM
Kindly Sign up for a personalised experience
- Ask Study Doubts
- Sample Papers
- Past Year Papers
- Textbook Solutions
Sign Up
Verify mobile number
Enter the OTP sent to your number
Change