# If a line is perpendicular to a radius of a circle at a point on the circle then the line is

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1. If a line is tangent to a circle, then it is perpendicular to the radius drawn to the point of tangency. Example. Jason is located at a point P, 28 feet from the edge of a circular garden. The distance from Jason to a point of tangency on the garden is 56 feet. What is the radius of the garden? (r + 28) 2 = r 2 + 56 2. r 2 + 56r + 784 = r 2 + 3136
2. Oct 01, 2014 · For example if I had a circle with the diameter of 76cm, I could find the area by squaring 76cm and then multiplying it by .7786. I would then find the area of the object would be 4497.1936 cm^2. I could also find the circumference by multiplying 76 with 3.279. I would then find the circumference is 249.204 cm.
3. How do you construct a perpendicular bisector through a point not on the line? 1) Using the POINT TOOL, mark point D on segment AB. 2) Using the COMPASS TOOL, create a circle with radius CD and center C. 3) Using the POINT TOOL, mark point F at the intersection of circle C and segment AB.
4. A tangent is a line in the same plane as the circle that intersects the circle at exactly one point. Recall from geometry that a tangent to a circle is perpendicular to the radius at the point of tangency. IV. Tangents
5. A circle is a set of all points that are equidistant from a fixed point, called the center, and the segment that joins the center of a circle to any point on the circle is called the radius. But there are even more special segments and lines of circles that are important to know.
6. The two definitions of the tangent line to a circle are equivalent: 1) a straight line is a tangent line to a circle if it has only one common point with the circle, and. 2) a straight line is a tangent line to a circle if it is perpendicular to the radius drawn to the tangent point. My other lessons on circles in this site are.
7. Now, joining each centre of the circles to the point A on the line segment PQ by a line segment .i.e C 1 A, C 2 A, C 3 A, C 4 A..... so on. We know that, if we draw a line from the centre of a circle to its tangent line, then the line is always perpendicular to the tangent line, But it does not bisect the line segment PQ.
8. Theorem 2: (Converse of Theorem 1) A line drawn through the end of a radius and perpendicular to it is a tangent to the circle. Given: A circle with centre O in which OP is a radius and AB is a line through P such that OP ⊥ AB. To prove: AB is a tangent to the circle at the point P. Construction: Take a point Q, different from P, on AB. Join OQ. Proof: We know that the perpendicular distance ...
9. circle, then it is perpendicular to the radius drawn to the point of tangency. If AB suur is a tangent, AB ^ AK Ex 1: RS is tangent to dQ at point R. Find the diameter.. 4. Theorem 10-10 - In a plane, if a line is _____ to a radius of a circle at the endpoint on the circle, then the line is a tangent to the circle. Ex 2: a.) Determine whether b.)

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