1. The length of the ribbon required to cover a square having side Doi

1.	1. The length of the ribbon required to cover a square having side Dois 2w in the blanc.The area of a square field is 625 am. Its each side measuresqular field with length 25m
Answer» Answer: Let ABCD represents the square field having each side of 20 mtr. Let the cow is tied at point A by means of a 7 mtr long rope. So the cow can MOVE and gaze in the CIRCULAR area having radius 7 mtr. The maximum area that a cow can gaze is = 4 1 πr 2 = 4 1 × 7 22 ×(7) 2 =38.5sq.mtr ∴ The cow can gaze 38.5 sq. mtr are of the field. If the LENGTH of the rope is doubled then r = 14 mtr. The maximum area that a cow can gaze is = 4 1 πr 2 = 4 1 × 7 22 ×(14) 2 =154sq.mtr. Increase in the gazing area = 154 - 38.5 = 115.5 sq. mtr Increase in the gazing area is 115.5 sq. mtr. Step-by-step explanation:

1. The length of the ribbon required to cover a square having side Dois 2w in the blanc.The area of a square field is 625 am. Its each side measuresqular field with length 25m

Answer»

Answer:

Let ABCD represents the square field having each side of 20 mtr.

Let the cow is tied at point A by means of a 7 mtr long rope.

So the cow can MOVE and gaze in the CIRCULAR area having radius 7 mtr.

The maximum area that a cow can gaze is

πr

×(7)

=38.5sq.mtr

∴ The cow can gaze 38.5 sq. mtr are of the field.

If the LENGTH of the rope is doubled then r = 14 mtr.

The maximum area that a cow can gaze is

πr

×(14)

=154sq.mtr.

Increase in the gazing area = 154 - 38.5 = 115.5 sq. mtr

Increase in the gazing area is 115.5 sq. mtr.

Step-by-step explanation: