It is: 0.5*30*11 = 165 square feet
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The formula to calculate area of a triangle is 1/2 bh. You're trying to find out what the height is, so let's fill in what we know.base=13.2 ft; area = 198 ft Putting these numbers into our formula, we get:1/2 (13.2) x ?(h) = 198 ft1/2 of 13.2 is 6.6 so if we divide this into 198 we get 30 ft.Let's check our work: 1/2 (13.2) x 30 = 198, true or false? It is true, so the height of the triangle must be 30 ft.
Area of a triangle = (base x Height)/2 = 7 ft x 15 ft/2 = 105/2 sq ft= 52.5 sq ft
50 ft providing that it is a right angle triangle.
The area of any triangle is the base times the height divided by 2. So a triangle having a base of 7 ft. and a height of 4 ft. has an area of 14 sq. ft. Since the windmill has 4 blades with such a shape, the total area is 4 times the area of each blade, which is 56 sq. ft.
The area of a triangle with a height of 3' and and a base of 32 inches is 3.99 sq. ft. sumit.