The answer is 35cm 2. To find the area, you need to divide the shape into a rectangle and a triangle: The area of the rectangle is 5 Ã 4 = 20cm 2. The base of the triangle is calculated by subtracting the base of the rectangle (4cm) from the total length of the shape (10cm).
A handful of studies have found that when wounds are kept moist and covered, blood vessels regenerate faster and the number of cells that cause inflammation drop more rapidly than they do in wounds allowed to air out. It is best to keep a wound moist and covered for at least five days.
The only time a wound should be covered is if itâs bleeding, oozing, or infected. Otherwise, you just have to keep the scab clean and dry. Scabs donât work unless they are dry. When scabs get wet, they begin to fall apart and tear, which allows bacteria to get in and cause major problems.