MCQ Practice Mathematics 📖 If a square region (PQRS) has an area of 4 square feet, what is the length of its diagonal(PR)? A 2 feet B 2√2 feet C 4 feet D 8 feet Favorite Practice Add to Book Explanation & Answer Detailed explanations and answers are restricted. Unlock full access by logging in to your account. 🔒 Unlock the detailed explanation and answers Log In / Sign Up PreviousIf a square is inscribed in a circle of radius r as shown below, then the area of the square region is-- NextIf a triangle has base B and the altitude of the triangle is twice the base, then the area of the triangle is: