 Hello and welcome to the session. Today I'll help you with the following question. The question says, find the height of the cylinder whose volume is 1.54 meter cube and diameter of the base is 140 centimeters. Let's recall the volume of cylinder which is equal to pi r square h where r is the radius of cylinder and h is the height of cylinder. This is the key idea for this question. Now let's see the solution. We are given the volume of cylinder is equal to 1.54 meter cube and diameter of base is equal to 140 centimeters. Now the diameter is given in centimeters and the volume is given in meters. So first let's convert the diameter in meters. So to convert 140 centimeters into meters we divide 140 by 100 this becomes equal to 1.4 meters. So we have diameter of base is equal to 1.4 meters that is radius of base r is equal to 1.4 upon 2 which is equal to 0.7 meters. So we have radius r is equal to 0.7 meters. We know the formula volume of cylinder is equal to pi r square h. Now we shall substitute the values for the volume and the radius r to find the value of the height. We have the volume of cylinder is 1.54 meter cube. So this implies 1.54 is equal to now the value for pi is 22 upon 7 multiplied by the value for r is 0.7 meters. So 0.7 whole square multiplied by h this implies height h is equal to 1.54 multiplied by 7 whole upon 22 multiplied by 0.7 multiplied by 0.7. Now 7.1 times is 0.7 this is equal to 1.54 upon 22 multiplied by 0.1 multiplied by 0.7 which becomes equal to 1.54 upon 1.54. This 1.54 is cancelled with this 1.54 and so this becomes equal to 1. As we get h is equal to 1. So we have height of cylinder is equal to 1 meter. So final answer is 1 meter. So hope you enjoyed the session. Have a good day.