Class -9 Chapter - 8 Quadrilaterals ex - 8.1 Q.1 If the diagonals of a parallelogram are equal, then show that it is a rectangle. Q.2 Show that the diagonals of a square are equal and bisect each other at right angles Q.3 Diagonal AC of a parallelogram ABCD bisects ∠A (see Fig. 8.19). Show that (i) it bisects ∠C (ii) ABCD is a rhombus. #studypointonlineclasses #maths #ncertsolutions #class9 #viral #mpboardsolutions #quadrilaterals