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 dark reddish to brown stain covers up the natural color of the skin around the wound, making it hard to detect the early signs of infection. Skin which is red and irritated will be difficult to see under a coating of Mercurochromeâ¢, which means that the infection could be missed until it grows much larger.