What is the mathematical formula for the area of an irregular trapezoid?

Related questions

• A rectangle is 12cm longer than its wide. It's perimeter is 68m, how do you find it's length and width?
• If the area of a square is 225 cm2, what is perimeter?
• How do you find the perimeter and area of a square with side 6 1/2 in?
• The length of a rectangle is 3 times its width. If the area of the rectangle is #"192 in"^2#,...
• A square has a perimeter of 36 inches. What is the area?
• If a semi circle has a diameter of 4cm then what is the perimeter?
• A painting measures 12 inches by 16 inches and is surrounded by a frame of uniform width around...
• A clear plastic prism has six faces, each of which is a parallelogram of side length 1 meter. A...
• How do you find the area of a trapezoid when you have the length of every side but not the height?
• The area of a trapezoid is equal to half of the product of the height and sum of the bases. How...