Each blade on a windmill is in the shape of a triangle with a base of 7 feet and a height of 4 ft if there are four blades on the windmill what is the total area of the blades
Total area of blades= Sum of areas of all blades
=Sum of areas of four blades
As, all blades have same dimension
SO, Total area of blades=4*Area of one blade
As, shape of blade is triangle, Area of triangle=*base*height
Total Area of blades =4* * base * height
Total Area of blades =4* * 7 * 4
Total Area of blades =4* * 28
Total Area of blades =4* 14
Total Area of blades =56 square feet