<prompt> Silinda ya mviringo ya kulia na kipenyo chake sawa na urefu wake imeandikwa kwenye koni ya mviringo ya kulia. Koni ina kipenyo cha 10 na urefu wa 12, na shoka za silinda na koni zinapatana. Pata radius ya silinda. Eleza jibu lako kama sehemu ya kawaida.  <response>: Ruhusu silinda iwe na kipenyo r na urefu wa 2r. Kwa kuwa triangle APQ ni sawa na triangle AOB, tuna frac12-2rr frac125, text so r frac30 11.asychora0,2 ..-6,0--6,0..mzunguko;chora0,-2 ..-6,0--6,0..mzunguko;chora0,1 ..-3,0--3,0..mzunguko;chora0,-1 ..-3,0--3,0..mzunguko;kujaza-6,0.01---6,-0.01--6,-0.01--6,0.01--mzunguko,nyeupe;chora0,14--0,0--6,0,dashed;chora0,8 ..-3,7--3,7..mzunguko;chora0,6 ..-3,7--3,7..mzunguko;kujaza-3,7.01---3,6.99--3,6.99--3,7.01--mzunguko,nyeupe;chora0,7--3,7,iliyopigwa;chora-6,0--0,14--6,0;chora-3,0---3,7;chora3,0--3,7;lebotiny O,0,0,W;lebovidogo B,6,0,E;lebovidogo P,0,7,W;lebotiny Q,3,7,E;lebovidogo A,0,14,E;chora0,-2.5--6,-2.5,Mishale;chora-6.5,0---6.5,14,Mishale;lebovidogo 5,3,-2.5,S;lebovidogo 12,-6.5,7,W;kuchora10,0--15,0--10,12--mzunguko;chora10,6--12.5,6;chora15.5,0--15.5,12,Mishale;lebotiny O,10,0,W;lebovidogo P,10,6,W;lebovidogo A,10,12,W;lebovidogo 2r,10,3,W;lebovidogo 12-2r,10,9,W;lebovidogo B,15,0,E;lebodogo Q,12.5,6,E;lebovidogo 12,15.5,6,E;lebovidogo 5,12.5,0,S;asy 