CBSE

MATHEMATICS · Multi-part · CBSE · Mathematics · Surface Areas and Volumes · Surface Areas and Volumes

Problem

Find: (1) the radius of a sphere with surface area

64\pi\ \mathrm{cm}^2

(2) the height of a solid cylinder with radius

6.3\ \mathrm{cm}

and surface area

1243\ \mathrm{cm}^2

(3) the radius of a cone with slant height

143\ \mathrm{mm}

and surface area

60\,000\ \mathrm{mm}^2