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\ 08-Oct-2025 Bharat Arora Proof-9 Reader’s Sign _______________________ Date __________

practice time 11B

1. Find the area of a rectangle with:
( a) length = 20 cm, breadth = 12 cm (b) length = 11 cm, breadth = 10 cm

( c) length = 132 cm, breadth = 80 cm (d) length = 4 m and breadth = 180 cm
2. Find the area of a square with side:

( a) 4 cm (b) 64 cm (c) 85 cm (d) 6 m

3. Complete the following tables.

Length of the rectangle (cm) Breadth of the rectangle (cm) Area (sq. cm)

(a) 9 4
(b) 32 1600
(c) 15 345

(d) 8 56

4. Find the area of the shaded part in each.
( a) ( b) ( c) ( d)

5. Find the area of the triangle in each figure.

( a) (b) (c) ( d)

6. Find the area of a square whose perimeter is 120 m.

7. A rectangular plot has an area equal to 2550 sq. m. Its length is 75 m. Find the
breadth of the rectangular plot.

8. Find the area of a rectangle whose length is 24 m and perimeter is 88 m.

9. Find the area of the following.
( a) 9 cm ( b) 5 cm 5 cm (c) 9 cm

7 cm
8 cm 7 cm
2 cm 16 cm

5 cm 5 cm
14 cm 6 cm
7 cm

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