Jee Main
Vector Algebra
JEE Main 2021 (Online) 26th August Evening Shift
MCQ+4 / -12021
A hall has a square floor of dimension 10 m \(\times\) 10 m (see the figure) and vertical walls. If the angle GPH between the diagonals AG and BH is \({\cos ^{ - 1}}{1 \over 5}\), then the height of the hall (in meters) is :
