What are ninety degrees?

What are ninety degrees? Imagine you're playing with your favorite toy blocks, when they make a perfect corner, that’s what ninety degrees looks like.

Think about a square block, the kind you stack to build a tower. When it sits on the table, one side is flat against the table. If you push it so that another side goes up from the first one, making a right angle, that’s ninety degrees in action.

Now imagine your hands, when they're both pointing straight out from your body, like you’re giving a high-five to someone on each side, that’s also a right angle. If you move one hand up and the other stays still, it's like turning a block, making ninety degrees.

So, ninety degrees is just a way of saying "a perfect corner" or "a turn from straight to sideways," something you see every day when you play with blocks or wave your hands. It’s simple, real, and all around you! What are ninety degrees? Imagine you're playing with your favorite toy blocks, when they make a perfect corner, that’s what ninety degrees looks like.