Study Kunji
Mathematics: Area – 30 Important Questions
By Prem Sir
Part 1: Triangle
1. Find the area of a triangle whose base is 15 cm and height is 8 cm.
2. Find the area of a triangle whose base is 24 m and height is 10 m.
3. Find the height of a triangle whose area is 96 cm² and base is 16 cm.
4. Find the height of a triangle whose area is 150 m² and base is 25 m.
5. Find the base of a triangle whose area is 72 cm² and height is 9 cm.
6. Find the base of a triangle whose area is 180 m² and height is 12 m.
Part 2: Rectangle
7. Find the area of a rectangle whose length is 25 cm and breadth is 12 cm.
8. Find the area of a rectangle whose length is 32 m and breadth is 15 m.
9. Find the breadth of a rectangle whose area is 420 cm² and length is 28 cm.
10. Find the breadth of a rectangle whose area is 540 m² and length is 30 m.
11. Find the length of a rectangle whose area is 576 cm² and breadth is 18 cm.
12. Find the length of a rectangle whose area is 840 m² and breadth is 24 m.
Part 3: Square
13. Find the area of a square whose side is 18 cm.
14. Find the area of a square whose side is 25 m.
15. Find the side of a square whose area is 324 cm².
16. Find the side of a square whose area is 625 m².
Part 4: Parallelogram
17. Find the area of a parallelogram whose base is 22 cm and height is 10 cm.
18. Find the height of a parallelogram whose area is 288 cm² and base is 24 cm.
19. Find the base of a parallelogram whose area is 360 m² and height is 15 m.
20. Find the area of a parallelogram whose base is 18 m and height is 12 m.
Part 5: Trapezium
21. Find the area of a trapezium whose parallel sides are 14 cm and 22 cm, and height is 10 cm.
22. Find the height of a trapezium whose area is 180 cm² and parallel sides are 12 cm and 18 cm.
23. Find the area of a trapezium whose parallel sides are 16 cm and 24 cm, and height is 12 cm.
24. Find the height of a trapezium whose area is 200 cm² and parallel sides are 16 cm and 24 cm.
Part 6: Mixed Questions
25. Find the height of a triangle whose area is 210 cm² and base is 30 cm.
26. Find the breadth of a rectangle whose area is 720 m² and length is 40 m.
27. Find the side of a square whose area is 784 cm².
28. Find the height of a parallelogram whose area is 450 m² and base is 25 m.
29. Find the base of a triangle whose area is 192 cm² and height is 16 cm.
30. Find the height of a trapezium whose area is 250 m² and parallel sides are 20 m and 30 m.
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