SmallWhale

Right Triangle

Discover the amazing triangle with a perfect square corner, like a slice of pizza or a ramp!

Images

Isosceles right triangle with legs length 1

Isosceles right triangle with legs length 1

openverse
Building 66, the 30° 60° 90° right triangle building
Basic right triangle b
45° 45° 90° Special Right Triangle
Fermat right triangles
Isosceles right triangle 001
Basic right triangle bw
Isosceles right triangle 002
Basic right triangle ptq
Right triangle with labels
Basic right triangle smn
Basic right triangle fcg

Key Facts

Special Corner
Has one right angle, which measures 90 degrees.
Side Names
The sides next to the right angle are called legs. The side opposite is the hypotenuse.
Pythagorean Theorem
The squares on the legs add up to the square on the hypotenuse (a² + b² = c²).
Shape Connection
Every right triangle is half of a rectangle or square cut by its diagonal.

Meet the Super-Corner Triangle!

Imagine a triangle that looks like a slice of pizza or a ramp for a toy car. This special triangle is called a right triangle! It has one corner that is perfectly square, just like the corner of a book or a door. This special corner is called a right angle. It's like a perfect 'L' shape. All other triangles have pointy corners, but the right triangle has one super-straight, square corner.

What's So Special About Its Sides?

The sides of a right triangle have cool names! The two sides that make the square corner are called 'legs'. They are like the legs of a table holding it up. The longest side, which is always opposite the square corner, is called the 'hypotenuse'. Think of it as the slide on a playground – it's the longest part! If you have a rectangle and draw a line across it, you make two right triangles!

A Secret Code for Sides!

There's a super cool secret code for right triangles called the Pythagorean theorem! It says that if you make squares on the two shorter sides (the legs), their areas added together will be the same as the area of a square made on the longest side (the hypotenuse). It's like magic! This helps builders make sure things are strong and straight, like the corners of a house.

Where Do We See Them?

Right triangles are everywhere! Think about a ladder leaning against a wall – it makes a right triangle. The wall is one leg, the ground is another leg, and the ladder is the hypotenuse. Even a ramp for skateboarding or a sail on a boat can be shaped like a right triangle. They help us build things and understand shapes all around us!

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Based on content from Wikipedia · Licensed under CC BY-SA 4.0