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How can you find the measure of the central angle with the sector area known?
Wiki User
∙ 10y ago
It is found by: (sector area/entire circle area) times 360 in degrees
Wiki User
∙ 10y ago
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What is the area of a sector if the central angle is 45 degrees?
An eighth of the area of the circle which, since neither its radius, diameter nor circumference are known, is an unknown quantity.
Which type of angle has a measure of 90 degrees?
An angle of 90 degrees is known as a right angle.
How do you determine the measurement of a missing angle in a angle?
To find the measure of an angle, you need to know the size of the entire angle and the other angles within the angle. Then, you subtract the smaller, known angles from the entire, large angle and you should get the measure of the missing angle.
What is acute in math?
The measure of an angle with a measure between 0° and 90° or with less than 90° radiant.Also Known As: A positive angle that measures less than 90°
What is an ambiguous triangle?
The answer may refer to a triangle for which the length of two sides and the measure of an angle - other than the included angle - are known.
How do you find radius using angle of a sector?
It depends on what else is known about the sector: length of arc, area or some other measure.
How do you find the degree measure of a central angle in a circle if both the radius and the length of the intercepted arc are known?
-- Circumference of the circle = (pi) x (radius) -- length of the intercepted arc/circumference = degree measure of the central angle/360 degrees
What is the area of a sector if the central angle is 45 degrees?
An eighth of the area of the circle which, since neither its radius, diameter nor circumference are known, is an unknown quantity.
Which type of angle has a measure of 90 degrees?
An angle of 90 degrees is known as a right angle.
An angle with a measure of 180degrees is called a what angle?
An angle with 180 degrees is a straight line, so it's known as a straight angle.
How do you determine the measurement of a missing angle in a angle?
To find the measure of an angle, you need to know the size of the entire angle and the other angles within the angle. Then, you subtract the smaller, known angles from the entire, large angle and you should get the measure of the missing angle.
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.
What is the measure of the angle named x?
It depends on what your measuring and the measure of the other given angles. "X" is also known as the missing angle. ex. In triangle ABC, the measure of angle A is 40 and the measure of angle B is 80 find the missing angle. answer- Angle C would be 60 because a triangle's angles add up to 180 degrees.
When do you use the Law of Cosines?
We use the law of Cosines to be able to find : 1. The measure of the third side, when the measure of two sides and the included angle of a triangle ABC are known. 2. The measure of any angle, when the measure of the three sides of a triangle ABC are known.
How do you find the measure of the second angle when it gives you only one angle measure?
You can use various properties of angles to find the measure of the second angle. For example, if you can see that the two angles form a right angle, then you know they add up to 90°, so you can subtract the known measure from 90° to find the measure of the other.
What is acute in math?
The measure of an angle with a measure between 0° and 90° or with less than 90° radiant.Also Known As: A positive angle that measures less than 90°
What is an ambiguous triangle?
The answer may refer to a triangle for which the length of two sides and the measure of an angle - other than the included angle - are known.
