In the diagram ab is parallel to de also de is drawn such that the length of de is half the length of ab. if sin a=0.5, then what is sin ?

Ametal rod is 2/5 meters long. it will be cut into pieces that are each 1/30 meters long. how many pieces will be made from the rod?

The point of intersection of the diagonals of a rectangle is 4 cm further away from the smaller side then from the larger side of the rectangle. the perimeter of the rectangle is equal to 56 cm. find the lengths of the sides of the rectangle. 16 points answer quick

Which of the following represents the length of a diagonal of this trapezoid?