Forget hunting for a tape measure or a protractor. Use your Android phone camera and sensors to handle different types of measurements easily.

You might be sitting in your car wrong. Get out, grab the 12-inch ruler you used in elementary school, and saw off 2 inches. Get back in your car and adjust the seat until the ruler touches both your ...

STEP 1 - RIGHT TRIANGLE x 4: Take one piece of card and fold it in half, then fold it in half again... Image caption, ... use the ruler and pencil to draw a straight line across the bottom corner of ...