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Grade: 12 
        The circles having radii r1 and r2 intersect orthogonally. Length of their common chord is
5 years ago

Answers : (3)

Arun Kumar
IIT Delhi
askIITians Faculty
256 Points 
							Two circles intersect orthogonally means r1 through point of contact makes right angle with r2 through that point


so the line intersecting has lenght
common chord length = h
by equating area of triangle formed in 2 different way

Arun Kumar
IIT Delhi
Askiitians Faculty
5 years ago
mayank rajput
11 Points 
							
you can solve this by using cosine formula in resulting triangle
if abc is a triangle then
C*2=A*2+B*2-2ABcosm
where m is angle between sides opposite to angle c.
 
2 years ago
Abhishek Mehta
39 Points 
							you can solve this by using cosine formula in resulting triangleif abc is a triangle thenC*2=A*2+B*2-2ABcosmwhere m is angle between sides opposite to angle c.
2 years ago
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