For rectangular plot, 

perimeter = 2(length + width)

or, 440 = 2(145+ width)

or, 220 = 145 + width       [ Dividing both sides by 2]

or, 220 -145 = width 

So, width = 75 feet 

Hope you got your answer. 

In simple words, sine, cosine, cosec, sec, tangent and cotangent are the six trigonometric functions. 

Acceleration is the rate of change of velocity with time. 

72 square meter 

Resistance of the material depends upon the nature of the material. 

But there are factors that changes the value of resistance. They are listed below.

1. length of the conductor : Resistance of the conductor is directly proportional to the length of the conductor 

2. Temperature: For conductors, resistance is directly proportional to the square root of the temperature of the conductor.

3. Cross- Sectional area: Resistance is inversely proportional to the cross-sectional area of the conductor.

Hope this helps you to some extent.

0.0013 is already in decimal.

By the way 13% is not equivalent percentage.

Let us take a simple example :

Let us consider c= 3,a= 4 and b=5 be the sides of the right angled triangle ABC.

Here a represents the side BC, b represents the side AC and c represents the side AB and the right angled is at B, i.e. <B = 90 degree.

1st Method:

For remaining angle, we use cosine law

i.e. Cos<A =(b*b + c*c - a*a)/(2bc) = ( 5*5 + 3*3 - 4*4) / (2*5*3) = 18/30

i.e. <A = inverse of cos(18/30) = 53 degree (approx)

So, <C = 90 - 53 = 37 degree

2nd Method:

Taking <A as reference angle,

c i.e. AB represents the base

a i.<e. BC represents the perpendicular

and b i.e. AC represents the hypotenuse

Using trigonometric ratio,

tan<A = perpendicular/base = BC/AB =4/3

i.e. <A = inverse of tan(4/3) =53 degree (approx)

So, <C =90 -53 = 37 degree.

Hope you got the solution.

Note: Once practice the given question with given information to understand the given solution.

The square root of a number is a value that, when multiplied by itself, gives the number.

Example: 4 × 4 = 16, so the square root of 16 is 4.

The symbol is √

Another example: √36 = 6 (because 6 x 6 = 36)

Hope this help you to some extent.

325 degree celsius  = 617 degree fahrenheit

1 inch = 0.0254 meter

1 yard = 0.9144 meter