There are 2.54 cm in one inch and there are 18 inches in half a yard so there are 2.54 times 18 = 45.72 cm in half a yard.
Only basic disks can be cloned with Acronis True Image 2016. You cannot clone dynamic disks. Checking if you have basic or dynamic disks. You can use Windows Disk Management to see if you have basic or dynamic disks: Hit Start-Run and type in diskmgmt.msc.
In order to copy your primary hard drive to another drive, you must clone the drive. The cloning (or imaging) process creates an exact copy of the entire hard drive. This data can be written directly to another hard drive or saved as a disk image file, which can be applied to a hard disk or another type of media.