Hi there! Let's learn about perpendicular lines together. Imagine you have two straight sticks.
If you put one stick standing up straight, like a tall tree, and then place the other stick lying flat on the ground, like the floor, they meet in a special way.
When two sticks meet and make a perfect corner that looks like the corner of a square or a picture frame, we call those sticks perpendicular lines.
This means the lines cross each other and make a right angle, which is like the letter "L".
So, perpendicular lines are two lines that cross each other and make a perfect corner like the corners of your room!
Try to spot some perpendicular lines around you, like where the walls meet the floor or the edges of a book!