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On what dates is the circle of illumination exactly tangent to the Arctic Circle?
Wiki User
∙ 15y ago
The circle of illumination intersects the North Pole on the spring and autumnal equinoxes, March 20 or 21 and September 22 or 23, when the Earth's North and South Poles are not tilted toward or away from the sun, but are both at 90 degrees to the sun's rays. The sun is directly above the equator, and every location on Earth has 12 hours of daylight.
Wiki User
∙ 16y ago
Wiki User
∙ 10y agoThat happens twice a year ...
-- At the moment of the December solstice, the Antarctic Circle is completely
inside the circle of illumination, and tangent to it on the inside.
-- At the moment of the June solstice, the Antarctic Circle is completely outside
the circle of illumination, and tangent to it on the outside.
At any other moment during the year except for these two, the circle of illumination
crosses the Antarctic Circle in two places.
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When is the Circle of Illumination exactly tangent to the Arctic Circle?
At the moments when the sun is at the Summer and Winter Solstices ... on June 21 and December 21.
What is a tangent ray?
The north or south most point of the insolations circle of illumination.
What is tangent ray?
The north or south most point of the insolations circle of illumination.
A tangent line is a line that intersects a circle at exactly two points?
No. A tangent touches the circle at exactly one point. A line that intersects a circle at exactly two points is a secant.
Which statement follows logically from the statement If a line is tangent to a circle then it intersects the circle at exactly one point?
If a line intersects a circle at exactly one point, it is a tangent to that circle
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. ]
A line which intersects a circle at exactly one point is called?
tangent
Point of intersection between a tangent and circle?
A line tyhat's tangent to a circle intersects the circle in exactly one single point. The radius drawn to that point is perpendicular to the tangent.
Is the tangent of a circle its radius?
No, a tangent is a line that intersects a circle at exactly one point. The radius of a circle is the distance from the center of the circle to any point on the perimeter of the circle.
What is a segment that intersects a circle in exactly one point?
That's a tangent to the circle.
What is a line that intersects a circle in exactly one point?
A tangent.
A line in the plane of a circle that intersects a circle at exactly one point is called a?
tangent
