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.
First aid guidelines for wounds. 1  For any open wound, your main focus should be to reduce the bleeding and avoid infection by applying pressure on the wound. 2  Next wrap a sterile and absorbent cloth (or a compress) around it.3  To reduce bleeding, you can also raise the injured part above the level of the heart.irst aid guidelines for wounds. 1  For any open wound, your main focus should be to reduce the bleeding and avoid infection by applying pressure on the wound. 2  Next wrap a sterile and absorbent cloth (or a compress) around it.