Find the length of a rope by which a cow must be tethered in order that it may be able to graze an area of 9856 sq meters.

Area Problems
Find the length of a rope by which a cow must be tethered in order that it may be able to graze an area of 9856 sq meters.

14m

76m

16m

56m

14m

76m

16m

56m

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clearly the cow will graze a circular field of area 9856 sq m and radius equal to the length of the rope.
Let the length of the rope be r mts then,
$r^{2}$ = 9856
$r^{2}$ = (9856 × 7) / 22 = 3136
r = 56 m

Area Problems
If the diameters of a circle is increased by 100% . Its area is increased by?

100%

400%

200%

300%

100%

400%

200%

300%

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Area Problems
The radius of a circle is increased so that its circumference increase by 5%. The area of the circle will increase by?

10 %

10.5 %

8.75 %

10.25 %

10 %

10.5 %

8.75 %

10.25 %

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Area Problems
A hall 20 m long and 15 m broad is surrounded by a verandah of uniform width of 2.5 m. the cost of flooring the verandah at the rate of 3.50 per sq. meter is?

Rs. 600

Rs. 500

Rs. 800

Rs. 700

Rs. 600

Rs. 500

Rs. 800

Rs. 700

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Area Problems
The ratio between the lenght and the breadth of a rectangle is 2 : 1. If breadth is 5 cm less than the length, what will be the parimeter of the rectangle?

30 cm

25 cm

40 cm

35 cm

30 cm

25 cm

40 cm

35 cm

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Area Problems
The perimeter of two squares are 68 cm. Find the perimeter of the third square whose area is equal to the different of the areas of these two squares.

64 cm

8 cm

60 cm

32 cm

64 cm

8 cm

60 cm

32 cm

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Area Problems

Area Problems Find the length of a rope by which a cow must be tethered in order that it may be able to graze an area of 9856 sq meters.

Area Problems If the diameters of a circle is increased by 100% . Its area is increased by?

Area Problems The radius of a circle is increased so that its circumference increase by 5%. The area of the circle will increase by?

Area Problems A hall 20 m long and 15 m broad is surrounded by a verandah of uniform width of 2.5 m. the cost of flooring the verandah at the rate of 3.50 per sq. meter is?

Area Problems The ratio between the lenght and the breadth of a rectangle is 2 : 1. If breadth is 5 cm less than the length, what will be the parimeter of the rectangle?

Area Problems The perimeter of two squares are 68 cm. Find the perimeter of the third square whose area is equal to the different of the areas of these two squares.

Area Problems
Find the length of a rope by which a cow must be tethered in order that it may be able to graze an area of 9856 sq meters.

Area Problems
If the diameters of a circle is increased by 100% . Its area is increased by?

Area Problems
The radius of a circle is increased so that its circumference increase by 5%. The area of the circle will increase by?

Area Problems
A hall 20 m long and 15 m broad is surrounded by a verandah of uniform width of 2.5 m. the cost of flooring the verandah at the rate of 3.50 per sq. meter is?

Area Problems
The ratio between the lenght and the breadth of a rectangle is 2 : 1. If breadth is 5 cm less than the length, what will be the parimeter of the rectangle?

Area Problems
The perimeter of two squares are 68 cm. Find the perimeter of the third square whose area is equal to the different of the areas of these two squares.