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.
Puncture Wounds. 1  It is important to keep the wound clean. Wash your hands before giving first aid. 2  If the wound is large and bleeding, do not wash it. It needs professional medical attention. 3  Wash a smaller puncture wound with a stream of soap and warm water. 4  Cover it with a clean bandage. Keep the bandage clean and dry.