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.
1 Don't forget to replace the key after cleaning the original or purchasing a new one. 2  You can replace the key by placing it on the keyboard and pushing it down with your finger so that it snaps into place.tep 3. Wedge your finger nail or a small flat head screwdriver under the top left or top right corner of the key you want to remove from the ThinkPad. Step 4. Lift the key from the keyboard in a gentle and quick motion.