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What is a triangle in a circle that is formed by two chords and a diameter?
Wiki User
∙ 14y ago
If a triangle is drawn in a circle with a diameter as the base of the triangle, then the angle opposite that diameter is a right angle.
This is an extension of the theorem that the angle which an arc of a circle subtends at the centre of a circle is twice the angle which the arc subtends at the circumference.
In the case of a diameter, then the angle subtended at the centre is 180° and thus the angle at the circumference is 90°.
Wiki User
∙ 14y ago
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What is the measure of the angle formed between a tangent and the diameter of a circle?
It is 90 degrees between the circle's diameter and its tangent
When chords intersect in a circle the vertical angles formed intercept conruent arcs always sometimes never?
Sometimes
If two chords intersect inside a circle the angles formed are called inscribed angles?
Yes and the angles around the point of intersection add up to 360 degrees.
How do you find the circumference of a semi-circle?
The length (circumference) of the curved part of a semi-circle is pi times the radius (pi*R). If the diameter is given, then the semi-circle length is 1/2 (pi * x D) because the radius is 1/2 of the diameter.(There are 2pi radians in a full circle.)A closed shape formed from a semi-circle has a perimeter P = D + (pi * D / 2)(diameter plus the curved part)
Chords ab and CD of circle o intersect inside the circle find the measure of the acute angle formed if arc ac is 42 and arc db is 94?
If two chords intersect inside a circle, the acute angle they form is one half of the sum of the arcs intercepted by its sides and by the vertical angle SO... The acute angle will be one half the sum of the two arcs. So it is 1/2(42+94)=68 degrees.
When a right triangle is inscribed in a circle will one of the legs of the triangle always be the diameter of a circle?
yes. the leg of the triangle has to be formed different because of the circle
When chords intersect in a circle are the vertical angles formed intercept congruent arcs?
Not unless the chords are both diameters.
What is pitch circular diameter in electric arc furnace?
It is the diameter of the circle formed by the three electrodes. Popular abbreviation is PCD. In a round furnace three electrodes(Normally AC furnace) are centered at the peak of the equilateral triangle. When a circle is drawn from the center covering three apexes(of triangle), such circle is called the PCD of Electrodes.vipin@vaibhavfurnaces.com
What is the measure of the angle formed between a tangent and the diameter of a circle?
It is 90 degrees between the circle's diameter and its tangent
If two chords intersect inside a circle are the angles formed called inscribed angles?
yes
If two chords intersect inside a circle the angles formed are called inscribed angles.?
yes
When chords intersect in a circle the vertical angles formed intercept conruent arcs always sometimes never?
Sometimes
If two chords intersect inside inside a circle the angles formed are called inscribed angles. true or false?
False
An angle that opens to the interior of the circle from a vertex on the circle?
This is the definition of an inscribed angle in geometry. An inscribed angle is formed by two chords in a circle that also share a common point called the vertex.
When two diameters of a circle divide the circle into 4 congruent parts what kind of angle is formed by diameter?
A right-angled (90 degrees) cross (+) is formed by the two diameter lines crossing in the centre of the circle.
What is the measure of the angle formed by 2 chords intersecting within a circle if the opposite arcs they intercept are 90 and 130?
15pi. after you add.
What are the different types of angles in a circle?
There are many angles inside a circle. You have inscribed angles, right angles, and central angles. These angles are formed from using chords, secants, and tangents.
