The diagram shows a shape made from a trapezium ABCD and a semicircle with diameter DC. DC = 8 cm
The shape has area 64 cm^2
The height of the trapezium is 5 cm.

Work out the length of AB.
Give your answer correct to 1 decimal place.

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release your mouse button when the item is place. if you change your mind, drag the item to the trashcan. click the trashcan to clear all your answers. solve this quadratic equation using the quadratic formula. 2x2 - 2x=1 need asap