Two cones with the same base radius 8 cm and height 15 cm are joined together along their bases. Find the surface area of the shape so formed. Share with your friends Share 0 Neha Sethi answered this Dear student =855 cm2 (approx) Regards 0 View Full Answer Singh Akhil answered this Because two cones are joined in such a way to get 769.14 1 Sanat answered this Correct.. 0