1 The second rectangle has a length of 16 centimeter (6.3 in) and a width of 8 centimeter (3.1 in). 2  Find the linear scale factor between the two shapes. 3  The length of the smaller rectangle corresponds to the length of the larger rectangle. 4  The length of the smaller rectangle equals 4 centimeter (1.6 in).
Reset the Keypad. The Smart or Learn button on the motorized unit attached to the garage ceiling resets the keypad and the control unit that operate the garage door opener's motor. You'll need to enter a new code into the keypad to make it operational again and reprogram the control unit.o verify that the reset took, enter the old PIN code into the keypad to see if it opens the garage door. If it does, the reset didn't take. Repeat the step to reset the keypad and verify the old code doesn't work before proceeding.
If youâve lost the remote for the garage door opener, itâs possible that it has ended up in the wrong hands. To be safe, follow the instructions that came with your opener to reset the code, disabling the lost remote.o avoid giving them easy access to your garage, take the remote with you when you leave the car. The handiest way to do this is to replace your big remote with a small keychain version (sold at home centers or where you bought your garage door opener).