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Construct a circle with a radius r. mark a point on the circle. construct a tangent thourgh this point.?
Wiki User
∙ 14y ago
1) draw the circle with a radius r and the center at O.
2) mark a point, A, on the circle
3) draw a line from O to A and beyond to point B, a little longer than the radius
4) draw a perpendicular bisector at point A using line OB
5) the perpendicular bisector is the tangent at point A
In case, you forgot about drawing the perpendicular bisector. Here is the procedure:
a) use your compass and mark equidistant points C and D from point A on line OB (make the length slightly less than half the radius); one point should be outside the circle and the other within.
b) use your compass and draw an arc from point C and then from point D, with the arc radii being identical and about as long as the circle radius; the two arcs should intercept at two locations, E and F, one on each side of line OA.
c) join points E and F to form the perpendicular bisector of line CD
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Wiki User
∙ 14y ago
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What is the Tangent Line to Circle Theorem?
The Tangent Line to Circle Theorem states that a line is tangent to a circle if and only if it's perpendicular to the circle's radius.
A line that intersects a circle at exactly one point?
Such a line is called a tangent line or a tangent to the circle. [Tangent is Latin for touching-- a tangent line touches the circle at just one point. ]
What happens between a radius and a tangent in a circle?
A tangent is always perpendicular to the radius of a circle. A radius is a straight line going from the center of the circle to the circumference (edge) of the circle. A tangent is a straight line outside the circle that touched the circle at one (and only one) point. When a tangent touches the outside edge of the circle at the same point where a radius touches the edge of the circle, the angle between the radius and tangent line is 90 degrees meaning they are perpendicular.
Does a secant tangent angle pass through the center of the circle?
Neither secant nor tangent pass through the center of a circle. A secant passes through one point on the circle and the tangent passes through two points on a circle.
A line which touches the circle at only one point and outside the circle?
Is calleda tangent line. Is called a tangent line
How do you construct a line tangent through a circle through a point outside the circle?
The tangent line only touches the outside of a circle at one given point. So an outside line perpendicular to the circle's diameter at 90 degrees should do.
How do you construct circle?
just make it
How do you construct a circle that has radius with an equal length to the given line segment?
Adjust the compass to the given line segment then construct the circle.
What do you use to construct a circle?
You use a protractor.
What is it called when you construct a square exactly equal in area to a circle?
Quadrilateral
How do you draw a diameter of circle?
Construct a circle with a compass and then draw a straight line through its centre
What is it called when you use a compass and a straightedge to construct a square exactly equal in area to a given circle?
Squaring the Circle
Is there anything in this world which is perfect or absolute?
Perfection or Absolute are construct terms that have no real world application. While a perfect mathematical circle can be dictated it is impossible to construct a perfect mathematical circle and therefore perfection remains only in conception, not reality.
How many vertices in circle?
None but it's possible to construct shapes within a circle that have vertices.
People tried for centeries to square the circle what were they trying to do?
they were trying to construct a square that perfectly circumscribes (surrounds) a given circle.
What 2 geometric objects construct all other objects in drafting?
a straight line and a circle
What is a portion of the circumerence of a circle?
It's called an arc. The first person to construct an arc was Noah.
