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 Use clear water to rinse the wound. 2  Also clean around the wound with soap and a washcloth. 3  Keep soap out of the wound, as it can cause irritation. 4  If dirt or debris remains in the wound after washing, use tweezers cleaned with alcohol to remove the particles. 5  If debris still remains, see your doctor.hese guidelines can help you care for such wounds: 1  Wash your hands. 2  Stop the bleeding. 3  Clean the wound. 4  Apply an antibiotic. 5  Cover the wound. 6  Change the dressing. 7  Get stitches for deep wounds. 8  Watch for signs of infection. 9  Get a tetanus shot.