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Srishti Rajput

· started a discussion

· 1 Months ago

16 (Question: 372491.0 )

s= a+b+c/2 why u did a-b-c/2

Question:

∆PQR is an isosceles right angled triangle. If r is its inradius and R is its circumradius, then the value of Rr is—

Options:
A)

1-2    

B)

52    

C)

2+1    

D)

2+3    

Solution:

Ans: (c)


Ankit

· commented

· 1 Months ago

simply use formulae for finding out inradius in Right angle triangle as r = (a+b-c)/2 where c is hypotenuse.
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