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If they are width and length of a rectangle or triangle, where the angle between them is 90°, then it's time to call on our mate Pythagoras.
He said that the square of the diagonal = the sum of the squares of the other two sides.
1. Square the width
2. Square the length
3. Add these squares together
4. Find the square root
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∙ 13y ago
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How do you find the area of a rectangle given the length and diagonal?
The area of a rectangle is length times width. If you have the length and a diagonal, you will first have to figure out the width, using the formula of Pythagoras. length2 + width2 = diagonal2; solving for width: width = square root of (diagonal2 - length2). Once you have the width, just multiply lenght x width.
If you know that the diagonal of the rectangle is 13 feet and the length is 7 feet longer than the width what is the width?
The diagonal can be found by taking length^2+width^2=diagonal^2 13^2=x^2+(x+7)^2 169 = x2 + x2 + 14x + 49 120 = 2x2 + 14x x2 + 7x - 60 = 0 now just factor, and you have the answer. It's the positive x value.
Are there another formulae in solving th diagonals of the rectangles?
Other than what? It really all depends on what is given. For example:If you know the length of one diagonal, the other is just as long.If you know the length and width of the rectangle, use Pythagoras' formula for the diagonal.If you know one of the sides of the rectangle, and an angle, use some basic trigonometry to find the diagonal.
How do you find length x width?
You just multiply two different sides
How do you find width in rectangular prism if area volume and length is given?
I Just want an answerr?
How do you find the area of a rectangle given the length and diagonal?
The area of a rectangle is length times width. If you have the length and a diagonal, you will first have to figure out the width, using the formula of Pythagoras. length2 + width2 = diagonal2; solving for width: width = square root of (diagonal2 - length2). Once you have the width, just multiply lenght x width.
Can you get length and width from just the diagonal measurement?
No. You cannot even get the shape!
If you know that the diagonal of the rectangle is 13 feet and the length is 7 feet longer than the width what is the width?
The diagonal can be found by taking length^2+width^2=diagonal^2 13^2=x^2+(x+7)^2 169 = x2 + x2 + 14x + 49 120 = 2x2 + 14x x2 + 7x - 60 = 0 now just factor, and you have the answer. It's the positive x value.
The top of a rectangular top has a diagonal of 17 inches If the length of the computer is one inch less than twice the width find the dimensions of the computer?
Do you just type questions from your homework into this website? If so, frack off.
Are there another formulae in solving th diagonals of the rectangles?
Other than what? It really all depends on what is given. For example:If you know the length of one diagonal, the other is just as long.If you know the length and width of the rectangle, use Pythagoras' formula for the diagonal.If you know one of the sides of the rectangle, and an angle, use some basic trigonometry to find the diagonal.
How do you find length x width?
You just multiply two different sides
How do you find height using length and width?
There is no sure way to find the height of a rectangular prism with just the length and width. You need some other defined variable like the area. The height can range from 1 to infinity and never affect the base, length, and width.
How do you find the length if you have the width and perimeter?
Subtract twice the width from the perimeter. The answer will be twice the length. Divide by two.
Find the perimetre of rectangle with length 70mm and width 25mm?
I don't understand why there are so many questions about rectangles' perimeter. You just add the length and the width and double your answer....
How would you find the width if you only know the perimeter and length?
If it's a rectangle, just minus the length from the perimeter twice and than divide what you have by 2. Width = (Perimeter - (length*2))/2
How do you find the dimension?
Dimensions are just the measurements of the length and width and hieght. To find the dimensions just measure the object and record the distances.
How do you find the width with just the length and the height?
The answer depends on the shape. If it is a plane shape, the answer is that width = 0 In most other cases, there is not enough information to deduce the width.
