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 youâre not the type to forget your keys and get stuck outside, ilovetofu adds on his method for protecting himself from this vulnerability: I secured my openerâs quick release lever using a plastic zip tie. You may also want to remove your rope if you have windows in your garage door. We all have those rare (or not so rare) occasions where we lock ourselves out of our house. While you could learn how to pick your own locks, reader ilovetofu shows us how to open a garage door in seconds. http://lifehacker.com/289087/beginne... To open it up, all you need to do is thread a coat hanger or hooked piece of wire through the top of the door and open the emergency latch (which can also be done by the rope many emergency latches have). Check out the video to watch it in action.