The perimeter is the distance around the outside of a closed 2D shape, space or area. You see the perimeter in real life on a football pitch or around a house to show its boundary. You can only find ...

ZACH: Our virtual house design is looking pretty cool. There’s something missing though. KAYLA: Some windows might be nice. ZACH: Oh yeah, I designed some earlier. ADA: To build the windows, you need ...