Ex 16.1|| Q13|| Surface Areas and Volumes ||RD Sharma Solutions|| Class 10|| NCERT/CBSE 13. A solid metallic sphere of radius 10.5 cm is melted and recast into a number of smaller cones, each of radius 3.5 cm and height 3 cm. Find the number of cones so formed. Application of Trigonometry – RD Sharma & NCERT • Application of Trigonometry Arithmetic Progression RD Sharma Solutions • Arithmetic Progression RD Sharma Solutions Arithmetic Progression NCERT • Arithmetic Progression NCERT Quadratic Equation Class 10 • Quadratic Equation Class 10 Quadratic Equations RD Sharma Solutions Class 10 • Quadratic Equations RD Sharma Solutions Cl... Surface areas And Volumes Class 10 RD Sharma • Surface Area & Volume RD Sharma Solution