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.
Every cut, scrape, or break in the skin can allow bacteria enter your body that could cause an infection. For this reason, itâs essential that all wounds be cleaned as quickly as possible and be kept clean. They should also be monitored for signs of an infection. Cleaning open wounds: Always wash your hands before touching an open wound. If possible, wear clean disposable gloves. If the wound is deep, gaping, or has jagged edges and canât be closed easily, it may need stitches. See your healthcare provider as soon as possible.