NCERT Figure it Out 1 - Q3 - The Baudhayana-Pythagoras Theorem
Question: The hypotenuse of an isosceles right triangle is 10. What are its other two sidelengths? [Hint: find the area of the square composed of two such right triangles.]
Answer: Each equal side is sqrt(50) = 5 sqrt(2).
Full step-by-step NCERT solution with diagrams on Something by Zero.