Math, asked by sathwik228, 4 months ago

if r+r1+r2+r3=4R cos c
r1+r2+r3-r=4R
r+r1+r2=r3 then show c=90°

Answers

Answered by ASHITOSHSHINDESHRI

4

Answer:

if r+r1+r2+r3=4R cos c

r1+r2+r3-r=4R

r+r1+r2=r3 then show c=90°

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