#### Geometry Book Back Questions

9th Standard

Reg.No. :
•
•
•
•
•
•

Maths

Time : 00:45:00 Hrs
Total Marks : 30
5 x 1 = 5
1. It is not possible to construct a triangle when its sides are

(a)

8.2 cm, 3.5 cm, 6.5 cm

(b)

6.3 cm, 3.1 cm, 3.2 cm

(c)

7 cm, 8 cm, 10 cm

(d)

4 cm, 6 cm, 6 cm

2. In the given figure CE || DB then the value of x0 is

(a)

45°

(b)

30°

(c)

75°

(d)

85°

3. If the diagonal of a rhombus are equal, then the rhombus is a

(a)

Parallelogram but not a rectangle

(b)

Rectangle but not a square

(c)

Square

(d)

Parallelogram but not a square

4. The interior angle made by the side in a parallelogram is 90° then the parallelogram is a

(a)

rhombus

(b)

rectangle

(c)

trapezium

(d)

kite

5. The angles of the triangle are 3x–40, x+20 and 2x–10 then the value of x is

(a)

40°

(b)

35°

(c)

50°

(d)

45°

6. 4 x 2 = 8
7. Find the complement of the following angles (1°= 60′ minutes, 1′ = 60′′ seconds)
70°

8. Find the value of x

9. Identify which ones are parallelograms and which are not.

10. Which ones are not quadrilaterals?

11. 4 x 3 = 12
12. In the figure, AB is parallel to CD, find x

13. In the figure, AB is parallel to CD, find x

14. Consider the given pairs of triangles and say whether each pair is that of congruent triangles. If the triangles are congruent, say ‘how’; if they are not congruent say ‘why’ and also say if a small modification would make them congruent:

15. Consider the given pairs of triangles and say whether each pair is that of congruent triangles. If the triangles are congruent, say ‘how’; if they are not congruent say ‘why’ and also say if a small modification would make them congruent:

16. 1 x 5 = 5
17. Draw ΔPQR with sides PQ = 7 cm, QR = 8 cm and PR = 5 cm and construct its Orthocentre.