0 votes 0 votes Three circles, each of radius $20$ and centres at $P, Q, R$. Further, $AB=5, CD=10$ and $EF=12$. What is the perimeter of the triangle $PQR$? $60$ cm $81$ cm $93$ cm $87$ cm Quantitative Aptitude cat1998 quantitative-aptitude + – makhdoom ghaya asked Apr 20, 2017 • edited 3 days ago by Counsellor makhdoom ghaya 8.1k points 407 views answer comment Share See all 0 reply Please log in or register to add a comment.