Here is an easy question for points ♥
look at the image linked below

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?

What is the circumference of the pie

If each bricks costs and he can only buy one brick how much will it cost him to get the material to put around the outside of his garden?