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.
Know MoreSet 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 cosine (cos) of 90 degrees is zero. This value is taken from the unit circle, a commonly used device in mathematics that assigns values to the trigonometric functions of sine and cosine.
Full Answer >The sine of a 10-degree angle is 0.17. The sine is defined as the length of the side of the triangle opposite the angle in question, divided by the length of the hypotenuse. These lengths can be determined through the Pythagorean theorem.
Full Answer >Sin 90 degrees is equal to one. This degree value can also be expressed in radians as sin(?/2) = 1. This value of the sine function corresponds to one-fourth of the complete arc distance along the unit circle.
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.
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