How do I know my true height?
Measure from the floor to the pencil mark with a measuring tape. Keep the measuring tape flat against the wall. If your measuring tape is too short to measure your full height, measure as high as you can and make a pencil mark on the wall. Note the measurement.
How can I find the height of an image?
The ratio of image height to object height = the magnification will equal the ratio of distance from image over distance of the object to the mirror or lens.
What is TSA of cylinder?
Total Surface Area of Cylinder The total surface area of a cylinder is equal to the sum of areas of all its faces. The total surface area with radius r, and height h is equal to the sum of the curved area and circular areas of the cylinder. TSA = 2π × r × h + 2πr2= 2πr (h + r) Square units.