A sealed-tube manometer can be used to measure pressures below atmospheric pressure. The tube above the mercury is evacuated. Wh
en there is a vacuum in the flask, the mercury levels in both arms of the U-tube are equal. If a gaseous sample is introduced into the flask, the mercury levels are different. The difference 'h' is a measure of the pressure of the gas inside the flask. If 'h' is equal to 6.5cm, calculate the pressure in the flask in torr, pascals, and atmospheres. (I need help trying to figure out HOW to get the answer, not what the answer is.)
Because this triangle and trapezoid are reflections of each other when split in half, remove the highlighted parts to make them a rectangle. When made into a rectangle, you can use the formula length * width to find the area of either shape (trapezoid or triangle).
Note you won't be able to do this when solving for the area of ALL trapezoids and triangles.
