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The Internet has many places to ask questions about anything imaginable and find past answers on almost everything.
The diagonal of a square is a line drawn from one corner to the corner across and at the other side of the square. The length of the diagonal of any rectangle equals the square root of the sum of the squares of its length and width. Multiply by the length of a side of the square.
The line stretching from one corner of the square or rectangle to the opposite corner through the centre of the figure is known as the diagonal. Any square that has two diagonals are equal in length to each other.
The number of diagonals in a polygon that can be drawn from any vertex in a polygon is three less than the number of sides. To find the total number of diagonals in a polygon, multiply the number of diagonals per vertex (n – 3) by the number of vertices, n, and divide by 2 (otherwise each diagonal is counted twice).
How to find the diagonal of a square – formula
In any 30-60-90 triangle, you see the following: The shortest leg is across from the 30-degree angle, the length of the hypotenuse is always double the length of the shortest leg, you can find the long leg by multiplying the short leg by the square root of 3.
What is a 30-60-90 Triangle? A 30-60-90 triangle is a special right triangle whose angles are 30º, 60º, and 90º. The triangle is special because its side lengths are always in the ratio of 1: √3:2.
Key Takeaways
Arc length is the distance between two points along a section of a curve. Determining the length of an irregular arc segment is also called rectification of a curve.
A minor arc (left figure) is an arc of a circle having measure less than or equal to ( radians).
In general, an arc is any smooth curve joining two points. The length of an arc is known as its arc length. The center of an arc is the center of the circle of which the arc is a part. An arc whose endpoints lie on a diameter of a circle is called a semicircle.
The formula for calculating the arc states that: Arc length = 2πr (θ/360) Where r = the radius of the circle, π = pi = 3.14. θ = the angle (in degrees) subtended by an arc at the center of the circle.
A circle is 360° all the way around; therefore, if you divide an arc’s degree measure by 360°, you find the fraction of the circle’s circumference that the arc makes up. Then, if you multiply the length all the way around the circle (the circle’s circumference) by that fraction, you get the length along the arc.