This trapezoid has been divided into two right triangles and a rectangle. How can the area of the trapezoid be determined using the area of each shape.
Enter your answers in the boxes
The area of the triangle on the left is _in, in the area of the rectangle is in, and the area of the triangle on the right is _in
The area of the trapezoid is the sum of these areas which is _in

Best answer that i found on yahoo ok   set :   x= length of 2nd piece in cm  x- 3= length of 1st piece in cm  x-4= length of 3rd piece in cm  then since you know they all came from the 20 cm ribbon you add them together and set them equal to 20x+ x-3 +x-4 = 20  3x - 7= 20  3x= 27  x= 9  the shortest piece is the third piece which is x- 4  x-4  9-4 = 5  the length of the smallest piece is 5 cm.  the other lengths are  9 cm  6 cm

The answer is