A quadrilateral has sides 2,3,9....diagonals are at rt.angles. Find all possible values of

Ask iit jee aieee pet cbse icse state board community

Discussion Response Post to: A quadrilateral has sides 2,3,9....diagonals are at rt.angles. Find all possible values of

Forum Index -> Analytical Geometry -> View Full Question

Author

Message

kabi (1665)

Blazing goIITian

total posts: 575
Offline

Check d figure ::

either CD would be of 9 length or CB .

Case I :: when BC=9

AS AC is perpendicular to BD

In triangle

AOD

p²+q²=4

In tri. AOB

q²+r²=9

Also in triangle BOC

s²+r² =81

using eq. I and III in II

gives

p²+s² =76 =CD²

CD=sqrt(76 )

Case II

CD=9

repeat the above method

BC =sqrt(86)

thank u

The time u guys take to find the derivative of a function or for finding the equilibrium constant of a reaction or for finding the angle of dispersion of prism or for standing from ur seat to congratulate our team after their win almost in that time one kid die because of poverty.

Like 0 people liked this

Free Sign Up!

Preparing for IIT-JEE ?

Arihant Revision Package for IIT JEE - Books, Practice Tests + Rank Predictor

@ INR 1,995/-

For Quick Info