is called the percentage error in x.
The following formulae will be very useful in solving the problems.
Circle: If r is the radius, d is the diameter, P is the perimeter (circumference) and A is the area of a circle then
Cube: If x is the side, S is the surface area and V is the volume of a cube then
Cone: If 'r' is the base radius, 'h' is the height, 'l' is the slant height, is the vertical angle, is the semi-vertical angle, L is the lateral surface area, S is the total surface area and V is the volume of a (right circular) cone then
Cylinder: If r is the radius, h is the height, L is the lateral surface area, S is the total surface area and V is the volume of a (right circular) cylinder then
Sphere: If r is the radius, S is the surface area and V is the volume of a sphere then
Simple pendulum: If l is the length, T is the period of oscillation of a simple pendulum and y is the acceleration due to gravity, then
Sector: If r is the radius, l is the length of the arc and is the angle, p is the Perimeter and A is the area of a sector then