The incline of a treadmill in degrees is not the same as the gradient, which is given in percentage, and some treadmills do not display either figure. Calculate the incline of your treadmill on your own with a measuring tape and a calculator.Continue Reading
Set the treadmill to its flat setting. Use a level or measure the heights of the front and back rollers, which should be equal distances from the floor. Measure the length from roller to roller. This length is the hypotenuse of the triangles you measure later.
Increase the incline of the treadmill. Measure the new distances from the rollers straight down to the ground. The difference between these two heights is the height of the triangle or the rise of the slope.
The total length or hypotenuse of the inclined treadmill squared is equal to the sums of the squares of both legs (A? + B? = C?). One of the legs, the height, is already known, as is the hypotenuse (C). Solve for the unknown leg by obtaining the square root of the difference between the hypotenuse squared and the height squared. This second leg can be called the base. Dividing the height by the base and multiplying the product by 100 results in the gradient percentage.
The sine of an angle is equal to the opposite side divided by the hypotenuse. Divide the opposite side (height) by the hypotenuse. Take the inverse sine of the quotient.
The function arctan(x) describes the inverse tangent of x, wherein the ratio between the length of the sides opposite and adjacent to the angle can be used to determine the degrees or radian of the angle. Arctan can also be written as tan to the power of minus one.Full Answer >
An obtuse angle is more than 90 degrees. The three angles within any triangle always equal exactly 180 degrees. If two angles are obtuse — even if they are both only 91 degrees — they add up to more than 180 degrees. Therefore, it is impossible for more than one angle in a triangle to be greater than 90 degrees.Full Answer >
There are 360 degrees in a convex quadrilateral. A convex quadrilateral is made up of four sides and four corners, or angles. None of the angles bend inward toward the center of the shape, and the degrees of all four angles always add up to 360 degrees.Full Answer >
The cosine of zero degrees is equal to one. The cosine is a trigonometric function that can be defined through the Pythagorean Theorem as the length of the side of a right triangle adjacent to an angle over the hypotenuse of the triangle.Full Answer >