在这个三角形中，底边长为八厘米，高为五厘米，所以它的面积是二十平方厘米。
In this triangle, the base is eight centimeters long and the height is five centimeters, so its area is twenty square centimeters.
In this triangle, the base is eight centimeters long and the height is five centimeters, so its area is twenty square centimeters.