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secants

## Is it possible to have a line that intersects a circle three times?

Clearly we can’t have a third point of intersection because there cannot be 3 distinct points along the line equidistant from C. Or a more geometric proof: If a circle intersects a line in A and B, the center of the circle lies on the center normal of the line segment AB.

Tangent lines

## How do you check if a line passes through a circle?

if the distance is less than the radius, the line must intersect the circle at two distinct points. if the distance is equal to the radius, then the line will touch the circle. if the distance is greater than the radius, the line will lie completely outside the circle.

tangent line

## What is a segment between the center of a circle and a point on the circle?

The a line segment from the center of the circle to any point on the circle is a radius of the circle. By definition of a circle, all radii have the same length. We also use the term radius to mean the length of a radius of the circle.

## What is said to be the longest chord in a circle?

A chord that passes through the center of a circle is called a diameter and is the longest chord of that specific circle.

## At what points does each tangent intersect the circle?

The tangent of a circle is a line or line segment that intersects a circle at only one point.

## How many common points does the secant of the circle and circle have?

two points common

## How many common points does the circle and circle have?

Therefore, the circles have 1 point in common. These circles intersect each other at two points G and H. Therefore, the circles have two points in common.

90 degree

## What is the distance between two parallel tangents of a circle of radius 7 cm?

distance between two parallel tangents of a circle of radius 7cm is double the radius.

## What is the distance between two parallel tangents of radius 4 cm?

What is the distance between two parallel tangents of a circle of the radius 4 cm? = 2 x 4 = 8 cm.

## How do you draw a circle of radius 3.6 cm draw a tangent to the circle at any point on it without using the Centre?

Step 1: Draw a circle with radius 3.6 cm. Mark any point C on it. Step 2: Draw chord CB and an inscribed ∠CAB. Step 3: With the centre A and any convenient radius draw an arc intersecting the sides of ∠BAC in points M and N.

## How do you construct tangent to the center of a circle?

Point to Tangents on a Circle

1. Draw a line connecting the point to the center of the circle.
2. Construct the perpendicular bisector of that line.
3. Place the compass on the midpoint, adjust its length to reach the end point, and draw an arc across the circle.
4. Where the arc crosses the circle will be the tangent points.

## How do you construct the center of a circle?

Center of Circle

1. Draw a line across the circle to make a “chord”
2. Construct the perpendicular bisector of that chord to make a diameter of the circle.
3. Construct the perpendicular bisector of that diameter to get the center of the circle.

2020-06-10