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Segment AB is the diameter of Circle O Find the measure of angle DAB?
Wiki User
∙ 15y ago
Well, it seems like we need more info about where is point D. And also would be good to know about the angle DOB (this would be an angle that goes from A- to the center"O" and then to B. There should be an DOB. In this case, DOB would be two times the measure of DAB. Let's say that DOB is 90; so DAB is 45.
Wiki User
∙ 15y 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
How do you find the angle of a triangle within a circle segment?
You can find the angle of a triangle within a circle segment using the circle theorems.
What is a triangle in a circle that is formed by two chords and a diameter?
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°.
What relationship does the hypotenuse have with the circle?
The hypotenuse has no intrinsic relationship to the circle. The hypotenuse is the side of a right triangle that is opposite to the right angle. You can draw a circle that has a hypotenuse as its diameter or its radius, but you can do that with any line segment. It would not be related in another way to the triangle.
What is the degree measure of an angle subtended by an arc whose length is 10 cm?
There is not enough information to answer the question. You need the radius (or diameter) of the circle.
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
How do you find the angle of a triangle within a circle segment?
You can find the angle of a triangle within a circle segment using the circle theorems.
What is a triangle in a circle that is formed by two chords and a diameter?
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°.
What is the line that cross a circle but not a diameter called?
I believe that is called a chord. Yes, a chord is the straight line segment that crosses a circle, from one side of the circle to the other. The biggest possible chord is the diameter. The curved part of the circle, cut off by the chord [or chords], is the arc or the angle.
Does a full angle can be called a circle?
No. A full angle is a segment of a line which goes to a vertex and returns along the same path. Any point on the line segment, other than the vertex, will trace out a circle but the angle itself is NOT a circle.
Is it true or false that the measure of a tangent-chord angle is twice the measure of the intercepted arc inside the angle?
It is true that the measure of a tangent-chord angle is half the measure of the intercepted arc inside the angle. When a tangent line intersects a chord of a circle, it creates an angle between the tangent line and the chord, known as the tangent-chord angle. If we draw a segment from the center of the circle to the midpoint of the chord, it will bisect the chord, and the tangent-chord angle will be formed by two smaller angles, one at each end of this segment. Now, the intercepted arc inside the tangent-chord angle is the arc that lies between the endpoints of the chord and is inside the angle. The measure of this arc is half the measure of the central angle that subtends the same arc, which is equal to the measure of the angle formed by the two smaller angles at the ends of the segment that bisects the chord. Therefore, we can conclude that the measure of a tangent-chord angle is half the measure of the intercepted arc inside the angle.
Can a diameter of a circle divide an angle in the circle into congruent angles?
Yes.
Equation for the diameter of a circle?
It depends on what other information you have: area, circumference, radius, length of arc subtending a known angle, measure of angle for a known arc length etc.
What relationship does the hypotenuse have with the circle?
The hypotenuse has no intrinsic relationship to the circle. The hypotenuse is the side of a right triangle that is opposite to the right angle. You can draw a circle that has a hypotenuse as its diameter or its radius, but you can do that with any line segment. It would not be related in another way to the triangle.
How do we measure an angle?
A protractor can be used to measure an angle. An angle is basically part of a circle. A complete circle is 360 degrees. A right-angle is 90 degrees, half a circle is 180 degrees, and so on.
What is the degree measure of an angle subtended by an arc whose length is 10 cm?
There is not enough information to answer the question. You need the radius (or diameter) of the circle.
Can a circle have right angels in it?
no. if it did it wouldent be a circle a circle can circumscribe a right angle a right angle whose vertex lies on a circle has sides that intersect the circle's diameter.
