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

An angle is the space between two lines that start at the same point. This point is called the vertex. Angles measure the size of a turn in degrees. You can show degrees using the symbol ° after the ...

KAYLA: It’s skatepark building day in the virtual city.Woohoo! ZACH: Did you see my 180?Sweet, dude!Okay, let’s do it. ADA: Building the skatepark is going to require lots of angles.An angle is a ...