What is the area of this figure? drag and drop the appropriate number into the box. a = cm² 108 135 189 318 a shape made up of a square with the length measuring 9 centimeters and a height measuring 9 centimeters. there are two equally sized right triangles attached to the square. the base of each triangle measures 9 centimeters. the height of each triangle measures 12 centimeters. the remaining side of each triangle measures 15 centimeters.