10th Maths 13.3
NCERT Class 10th solution of Exercise 13.1 NCERT Class 10th solution of Exercise 13.2 NCERT Class 10th Maths Projects Exercise 13.3 Take π=227 unless stated otherwise. Q1. A metallic sphere of radius 4.2 cm is melted and recast into the shape of a cylinder of radius 6 cm. Find the height of the cylinder. Sol. : Given : Radius of Sphere R=4.2 cm Radius of Cylinder r=6 cm To find : Height of the Cylinder Solve : According to question Volume of the Cylinder = Volume of the Sphere πr2h=43πR3 h=4πR33πr2 h=4R33r2 h=4×(4.2)33(6)2 h=4×4.2×4.2×4.23×6×6 h=4×4.2×0.7×0.73 h=8.2323 h=2.744 cm Answer : The height of the cylinder 2.744 cm. ☝ Like, Share, and Subscribe. Q2. Metallic spheres of radii 6 cm, 8 cm and 10 cm, ...