Question

what is the formula of CSA and TSA of cube , cuboid andother important figures

Answer 1

$TSA\:of\:cylinder=2\pi rh +2\pi r^{2}\\</p><p>TSA\:of\:hemisphere=3\pi r^{2}\\</p><p>TSA\:of\:sphere=4\pi r^{2}\\</p><p>TSA\:of\:cone=\pi r(r+l)\:\:or \:\:\pi rl + \pi r^{2}\\</p><p>TSA\:of\:cube=6s^{2}\\</p><p>TSA\:of\:cuboid=2(lb+lh+bh)\\\\</p><p></p><p>CSA\:of\:cylinder=2\pi rh\\</p><p>CSA\:of\:hemisphere=2\pi r^{2}\\</p><p>CSA\:of\:sphere=4\pi r^{2} (same\:as\:TSA\:of\:sphere)\\</p><p>CSA\:of\:cone=\pi rl\\</p><p>CSA\:of\:cube=4s^{2}\\</p><p>CSA\:of\:cuboid=2(lb+bh)$

Answer 2

Step-by-step explanation:

CSA of cube = 4s^2

TSA of cube = 6s^2

CSA of cuboid = 2h(l+b)

TSA of cuboid = 2(lb+bh+lh)

CSA of cone = pi×r×l

TSA of cone = pi×r×l + pi×r^2

CSA of cylinder = 2×pi×r×h

TSA of cylinder = 2×pi×r (h+r)

CSA and TSA of circle = 4×pi×r^2

CSA of hemisphere = 2×pi×r^2

TSA of hemisphere = 3×pi×r^2