# mathsphy Maths NO MORE scary

S No. Topic Video
1 Basics of Quadrilaterals (Types and their Specs)
5 8.1 Q1 The angles of quadrilateral are in the ratio 3 : 5 : 9 : 13. Find all the angles
6 8.1 Q2 If diagonals of a parallelogram are equal, then show that it is a rectangle
7 8.1 Q3 Show that the diagonals of a quad. bisect each other at right angles, then it is a rhombus.
8 8.1 Q4 Show that the diagonals of a square are equal and bisect each other at right angles.
9 8.1 Q5 Show that the diagonals of a quad. are equal and bisect each other at right angles, then it is a square.
10 8.1 Q6 Diagonal AC of a parallelogram ABCD bisects angle A. Show that 1) It bisects anle c also 2) ABCD is a rhombus
11 8.1 Q7 ABCD is Rhombus then prove that AC bisects angle A, C and BD bescts angle B, D
Topic/Video

1 Basics of Quadrilaterals (Types and their Specs)

5 8.1 Q1 The angles of quadrilateral are in the ratio 3 : 5 : 9 : 13. Find all the angles

6 8.1 Q2 If diagonals of a parallelogram are equal, then show that it is a rectangle

7 8.1 Q3 Show that the diagonals of a quad. bisect each other at right angles, then it is a rhombus.

8 8.1 Q4 Show that the diagonals of a square are equal and bisect each other at right angles.

9 8.1 Q5 Show that the diagonals of a quad. are equal and bisect each other at right angles, then it is a square.

10 8.1 Q6 Diagonal AC of a parallelogram ABCD bisects angle A. Show that 1) It bisects anle c also 2) ABCD is a rhombus

11 8.1 Q7 ABCD is Rhombus then prove that AC bisects angle A, C and BD bescts angle B, D