Triangle Centres
... A perpendicular bisector of a triangle is a line which passes through the midpoint of one side and is perpendicular to that side. Note that three randomly chosen lines will almost never ever meet at a point and yet, for any particular triangle we choose, we’ll see that its three perpendicular bisect ...
... A perpendicular bisector of a triangle is a line which passes through the midpoint of one side and is perpendicular to that side. Note that three randomly chosen lines will almost never ever meet at a point and yet, for any particular triangle we choose, we’ll see that its three perpendicular bisect ...
GEOMETRY: PARALLELOGRAMS
... inside the polygon where as perimeter is the distance around the polygon. ...
... inside the polygon where as perimeter is the distance around the polygon. ...
Trigonometry of the General Angle
... so all trig functions will be positive Let's look at the signs of sine, cosine and tangent in the other quadrants. Reciprocal functions will have the same sign as the original since "flipping" a fraction over doesn't change its sign. In quadrant II x is negative and y is positive. ...
... so all trig functions will be positive Let's look at the signs of sine, cosine and tangent in the other quadrants. Reciprocal functions will have the same sign as the original since "flipping" a fraction over doesn't change its sign. In quadrant II x is negative and y is positive. ...
