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Does a hemisphere have 1 line of symmetry?
yes it has 1 line of symmetry right through the middle but plain lines r different
Which is not an acceptable name for line ab?
line r
In trig how is the value of r interpreted geometrically in the definitions of the sine cosine secant and cosecant?
In trigonometry, the value of R is the radius of the circle, and is usually normalized to a value of 1. If the circle is at the X-Y origin, and theta is the angle between the radius line R, and X and Y are the X and Y coordinates of the point on the circle at the radius line, then... sine(theta) = Y / R cosine(theta) = X / R secant(theta) = 1 / cosine(theta) = R / X cosecant(theta) = 1 / sine(theta) = R / Y
Points Q R and s lie on line xz in such a way that Q is the midpoint of line XZ R is the midpoint of line XQ and S is the midpoint of line QZ If qs 4 what is length RZ?
It is 12.
What letters in the English language have both parallel and perpendicular lines?
There are letters in the alphabet with both parallel and perpendicular lines. In alphabetical order, they are E, F, and H. If the joining point can be considered perpendicular and parallel, then B, D, P, and R also match the criterion.
