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.
1 Usually a bandage and gauze can do this for you, and the wound can scab over in less than 12 hours by itself to start healing. 2  However, if the wound is too wide to be held together with bandaging easily, then it will need stitching as this will pull the skin together so it can heal correctly.ow that you've got a good idea of what kind of wound you have, evaluate if the open wound needs stitching. Here are three ways to do so: 1  Look at the depth of the open wound.