Question

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solve 10 and 11... With steps..


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Answer 1

10.)

Answer:

Side of square bed = 1 m

Area of square bed = side * side = 1 m * 1 m = 1 m2

Area of 5 square beds = 1 * 5 = 5 m2

Now, Length of land = 5 m

Breadth of land = 4 m

Area of land = length * breadth

= 5 m * 4 m = 20 m2

Area of remaining part = Area of land – Area of 5 flower beds

= 20 m2 – 5 m2 = 15 m2

11.)

a) Area of region = 100 cm * 144 cm = 14400 cm2

Area of one tile = 5 cm * 12 cm = 60 cm2

Number of tiles = Area of region/Area of one tile

= 14400/60

= 240

Thus, 240 tiles are required.

(b) Area of region = 70 cm * 36 cm = 2520 cm2

Area of one tile = 5 cm * 12 cm = 60 cm2

Number of tiles = Area of region/Area of one tile

= 2520/60

= 42

Thus, 42 tiles are required.

Answer 2

Side of square bed = 1 m

Area of square bed = side * side = 1 m * 1 m = 1 m2

Area of 5 square beds = 1 * 5 = 5 m2

Now, Length of land = 5 m

Breadth of land = 4 m

Area of land = length * breadth

= 5 m * 4 m = 20 m2

Area of remaining part = Area of land – Area of 5 flower beds

= 20 m2 – 5 m2 = 15 m2

11.)

a) Area of region = 100 cm * 144 cm = 14400 cm2

Area of one tile = 5 cm * 12 cm = 60 cm2

Number of tiles = Area of region/Area of one tile

= 14400/60

= 240

Thus, 240 tiles are required.

(b) Area of region = 70 cm * 36 cm = 2520 cm2

Area of one tile = 5 cm * 12 cm = 60 cm2

Number of tiles = Area of region/Area of one tile

= 2520/60

= 42

Thus, 42 tiles are required.

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