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How do you calculate perimeter with decimals?
The same way u do with any other form of numerals: by adding the lengths of the edges together.
When do i use negative sin cos or tan?
The inverse (negatives) of sine, cosine, and tangent are used to calculate the angle theta (or whatever you choose to name it). Initially it is taught that opposite over hypotenuse is equal to the sine of theta sin(theta) = opposite/hypotenuse So it can be said that theta = sin-1 (opp/hyp) This works the same way with cosine and tangent In short the inverse is simply what you use when you move the sin, cos, or tan to the other side of the equation generally to find the angle
In math what do the letters in sohcahtoa stand for?
A way of remembering how to compute the sine, cosine, and tangent of an angle. SOH stands for Sine equals Opposite over Hypotenuse. CAH stands for Cosine equals Adjacent over Hypotenuse. TOA stands for Tangent equals Opposite over Adjacent.
How do you calculate the area of a scalene triangle?
That depends on what you know about the triangle. The easiest way to calculate the area is to calculate (1/2) x base x height, where the base is any side, and the height is perpendicular to the base. Other formulae exist for special cases, for example, for the case that you only know the length of the three sides.
How many tangents can be drawn to a circle containing a point inside the circle?
None can. A tangent is a line that touches a circle at only one point. If it wentthrough a point inside the circle, then it would have to touch the circle at twopoints ... one on the way in and another one on the way out.
