Math, asked by rameshgiri239, 9 months ago

1. Find area of a rectangle which has the following dimensions.
(a) 18 cm by 10 cm (b) 25 m by 12 m
(C) 1.2 m by 0.8 m
2. Find the area of a square whose side length equals
(a) 7 cm
(b) 18 cm
(c) 1.5 m
(d) x cm
3. Find in hectares the area of a
(a) rectangular farm measuring 400 m by 275 m.
(b) square farm having one side = 650 m
4. Find the length of a rectangle whose
(a) area = 360 cm² and breadth = 15 cm
(b) area = 4.5 m2 and breadth = 1.8 m
5. Find the perimeter of a square whose area is
(a) 49 cm2
(b) 100 cm
(c) 2.56 m²
6. (a) Find the area of a square whose perimeter is 84 cm.
(b) The perimeter of a square field is 6 km. Find its area in hectares.
7. Mr Saxena bought a plot of land 80 m by 40 m at 50000 per m². How much did the plot cost him?
8. How many tiles, each 25 cm by 20 cm, are required for the floor of a room, 12 m long and 9 m wide?
9. How many handkerchiefs, each 35 cm square, can be cut from material 70 cm wide and 3.5 m long?
10. A living room floor measures 6 m by 9 m. A 4 m by 7 m rug is placed on the floor. How many square metics
of the floor are not covered by the rug?

Answers

Answered by amitnrw

Step-by-step explanation:

area of a rectangle which has the following dimensions.

(a) 18 cm by 10 cm (b) 25 m by 12 m (C) 1.2 m by 0.8 m

a) 18 * 10 = 180 cm²

b) 25 * 12 = 300 m²

b) 1.2 * 0.8 = 0.96 m²

area of a square = Side²

(a) 7² = 49 cm²

(b) 18² = 324 cm²

(d) x² cm²

perimeter of a square whose area is 49 cm²

Side = √49 = 7 cm

Perimeter = 4 * 7 = 28 cm

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