In a right-angled triangle: (hypotenuse)² = (base)² + (perpendicular)². Hypotenuse = longest side, opposite to right angle. a² + b² = c². Pythagorean triples: (3,4,5), (5,12,13), (8,15,17). Check if triangle is right-angled: verify if squares of sides satisfy this.
How to study this topic
Read the core explanation once without solving.
Open the formula links below and connect them with the topic meaning.
Practice the 10 example pages one by one.
Use the AI ask page for text, voice or image-based doubts.