Question

1. The angles of quadrilateral are in the ratio 3:5:9: 13. Find all the angles
2. If the diagonals of a parallelogram are equal, then show that it is a rectangle.
3. Show that if the diagonals of a quadrilateral bisect each other at right angles, the
4. Show that the diagonals of a square are equal and bisect each other at right
5. Show that if the diagonals of a quadrilateral are equal and bisect each other as
So, PSQR is a para
EXERCISE 8.1
quadrilateral.
is a rhombus.
D
angles, then it is a square.
6. Diagonal AC of a parallelogram ABCD bisects
ZA (see Fig. 8.19). Show that
(1) it bisects 2 C also,
(1) ABCD is a rhombus.
A А
7. ABCD is a rhombus. Show that diagonal AC​

Answer 1

Answer:

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

2. If the diagonals of a parallelogram are equal, then show that it is a rectangle.

3. Show that if the diagonals of a quadrilateral bisect each other at right angles, the

4. Show that the diagonals of a square are equal and bisect each other at right

5. Show that if the diagonals of a quadrilateral are equal and bisect each other as

So, PSQR is a para

EXERCISE 8.1

quadrilateral.

is a rhombus.

D

angles, then it is a square.

6. Diagonal AC of a parallelogram ABCD bisects

ZA (see Fig. 8.19). Show that

(1) it bisects 2 C also,

(1) ABCD is a rhombus.

A А

7. ABCD is a rhombus. Show that diagonal AC