Line 37: |
Line 37: |
| |CYLINDER | | |CYLINDER |
| |<math>2{\pi}rh</math> | | |<math>2{\pi}rh</math> |
| + | Where r is the radius of circular base |
| |<math>2{\pi}r(r+h)</math> | | |<math>2{\pi}r(r+h)</math> |
| where "h" is the height of cylinder | | where "h" is the height of cylinder |
Line 45: |
Line 46: |
| Where l is the slant height | | Where l is the slant height |
| |<math>{\pi}r(l+r)</math> | | |<math>{\pi}r(l+r)</math> |
| + | Where r is the radius of circular base |
| |<math>\frac{1}{3}{\pi}r^2h</math> | | |<math>\frac{1}{3}{\pi}r^2h</math> |
| + | Where h is the height or depth of the cone |
| |- | | |- |
| |FRUSTUM OF CONE | | |FRUSTUM OF CONE |
Line 51: |
Line 54: |
| Where l=<math>\sqrt{h^2+(r_{1}-r_{2})^2}</math> | | Where l=<math>\sqrt{h^2+(r_{1}-r_{2})^2}</math> |
| |<math>π{{(r_{1}+r_{2})l+r_{1}^2+r_{2}^2}}</math> | | |<math>π{{(r_{1}+r_{2})l+r_{1}^2+r_{2}^2}}</math> |
− | Where l=<math>\sqrt{h^2+(r_{1}-r_{2})^2}</math> | + | Where r_{1} & r_{2} are the radii of two bases(r_{1}>r_{2}) |
| |<math>\frac{1}{3}{\pi}h(r_{1}^2+r_{2}^2+r_{1}r_{2})</math> | | |<math>\frac{1}{3}{\pi}h(r_{1}^2+r_{2}^2+r_{1}r_{2})</math> |
| + | Where h is the height or depth of the frustum ofcone |
| |- | | |- |
| |SPHERE | | |SPHERE |