#### Measurements Book Back Questions

7th Standard EM

Reg.No. :
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Maths

Time : 00:45:00 Hrs
Total Marks : 30
5 x 1 = 5
1. The perimeter of a parallelogram whose adjacent sides are 6 cm and 5 cm is

(a)

12 cm

(b)

10 cm

(c)

24 cm

(d)

22 cm

2. The area of the rhombus with side 4 cm and height 3 cm is

(a)

7 sq. cm

(b)

24 sq. cm

(c)

12 sq. cm

(d)

10 sq. cm

3. The area of the rhombus when both diagonals measuring 8 cm is

(a)

64 sq. cm

(b)

32 sq. cm

(c)

30 sq. cm

(d)

16 sq. cm

4. The area of the rhombus is 128 sq. cm and the length of one diagonal is 32 cm. The length of the other diagonal is

(a)

12 cm

(b)

8 cm

(c)

4 cm

(d)

20 cm

5. The height of the rhombus whose area 96 sq. m and side 24 m is

(a)

8 m

(b)

10 m

(c)

2 m

(d)

4 m

6. 3 x 2 = 6
7. A ground is in the shape of parallelogram. The height of the parallelogram is 14 metres and the corresponding base is 8 metres longer than its height. Find the cost of levelling the ground at the rate of Rs.15 per sq. m.

8. Find the area of a rhombus whose base is 14 cm and height is 9 cm.

9. A sweet is in the shape of rhombus whose diagonals are given as 4 cm and 5 cm. The surface of the sweet should be covered by an aluminum foil. Find the cost of aluminum foil used for 400 such sweets at the rate of Rs.7 per 100 sq. cm

10. 3 x 3 = 9
11. Find the height 'h' of the parallelogram whose area and base are 368 sq. cm and
23 cm respectively

12. Find the area of the trapezium whose height is 14 cm and the parallel sides are 18 cm and 9 cm of length

13. The area of a trapezium is 352 sq. cm and the distance between its parallel sides is
16 cm. If one of the parallel sides is of length 25 cm then find the length of the other side.

14. 3 x 5 = 15
15. Find the area of the rhombus whose side is 17 cm and the height is 8 cm.

16. The floor of an office building consists of 200 rhombus shaped tiles and each of its length of the diagonals are 40 cm and 25 cm. Find the total cost of polishing the floor at 45 per sq.m.