Divide the length of the diagonal of a square by 1.4142 (which is the square root of 2) to find the length of a side. Similarly, to find the length of the diagonal of a square, multiply the length of a side by 1.4142.
If you know the length of the side, multiply it by the square root of 2.
To find the diagonal in a cuboid, we use Pythagoras' Theorem in 3 dimensions. If we call the diagonal D, and the 3 dimensions of the cuboid (length, width, height) a, b and c:D=sqrt(a2+b2+c2)Example: The cuboid has dimensions of 4, 6 and 8. Find the Diagonal.D=sqrt(42+62+82)D=sqrt(16+36+64)D=sqrt(116)D=10.8 (3sf)Diagonal = 10.8 (3sf)
Yes you have to use the pythagorean theorm to find the length of a right triangle. But you must subtract A2 from C2 then square root the answer.
In general, you measure it. In a few special cases you may be able to use geometry or trigonometry.
Divide the length of the diagonal of a square by 1.4142 (which is the square root of 2) to find the length of a side. Similarly, to find the length of the diagonal of a square, multiply the length of a side by 1.4142.
The length of the other diagonal works out as 12cm
You need to use trigonometry cosine (angle) = length/diagonal diagonal = length/cos(angle)
The diagonal is 3.61cm
To find the length of each diagonal of a square, divide the sum of the diagonal lengths by 2. Since a square has two diagonals of equal length, this division will give you the length of each diagonal.
To find the length of a diagonal in a rectangle, use the Pythagorean method. Diagonal length = square root(length squared + height squared).
The length of the diagonal which is to opposite of 100⁰ angle is: diagonal length = √[152 + 82 - 2(15)(8)cos 100⁰] diagonal length ≈ 18 The length of the diagonal which is to opposite of 100⁰ angle is: diagonal length =√[152 + 82 - 2(15)(8)cos 80⁰] diagonal length ≈ 16
If they are the dimensions of a rectangle then use Pythagoras' theorem to find the length of the diagonal.
You square the width and subtract it from the diagonal squared. Then find the square root of this number, this number is now the length.
Use Pythagoras' theorem to find the length of the diagonal in the square
The side of a square is is cube root of 2cm. Find the length of the diagonals.
As a square has right angles, the diagonal forms a right triangle with two of the sides of the square. Therefore use Pythagoras: diagonal² = side² + side² → diagonal² = 2side² → diagonal = side × √2 Therefore to find the length of the diagonal of a square, multiply the side length of a square by the square root of 2.