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How do you find the angle of sector when arc length isn't given?
Wiki User
∙ 6y ago
By using a protractor and finding the angle between the two radii
Wiki User
∙ 6y ago
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How do you find the length of a sector?
The answer depends on what information you do have: radius, arc length, central angle etc.
How can you find the length of arc when central angle is not given?
The answer will depend on what other information is given.
How do you find the area of a sector of a circle when you're given only the radius and not the degrees?
You cannot. The angle of the sector MUST be given, although that might be implicitly rather than explicitly.
How do i find the arc length if i know the area?
Use the formula for the area of a circular sector, and solve for the angle.For a circular sector: area = radius squared times angle / 2 (Note: The angle is supposed to be expressed in radians; and in this specific problem, there is no need to convert it to degrees.) Since you know the area and the radius (according to the comments added to this question), you can solve for the angle. Once you know the angle (in radians!), the arc length is simply angle x radius.
How do you find the arc length when only given the degree and radius?
Length = angle˚/360˚ x 2∏r
How do you find the length of a sector?
The answer depends on what information you do have: radius, arc length, central angle etc.
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.
Find the arc length of a sector with a radius of 30 and an angle of 60 degrees?
arc length = angle/360 x r 60/360 x 30 = 5
How can you find the length of arc when central angle is not given?
The answer will depend on what other information is given.
How do you find the area of a sector of a circle when you're given only the radius and not the degrees?
You cannot. The angle of the sector MUST be given, although that might be implicitly rather than explicitly.
How do you find the central angle of a circle if I am given the arc length and radius?
(arc length / (radius * 2 * pi)) * 360 = angle
How do i find the arc length if i know the area?
Use the formula for the area of a circular sector, and solve for the angle.For a circular sector: area = radius squared times angle / 2 (Note: The angle is supposed to be expressed in radians; and in this specific problem, there is no need to convert it to degrees.) Since you know the area and the radius (according to the comments added to this question), you can solve for the angle. Once you know the angle (in radians!), the arc length is simply angle x radius.
How can you find the angle of a sector in a circle?
Multiply ( pi R2 ) by [ (angle included in the sector) / 360 ].
How do you find the arc length with the area given?
With the information given, you cannot. You need the radius or the central angle.
How do you find radius of a circle if given arc length?
you will need to know the angle subtended by the arc; arc length = radius x angle in radians
How do you find the arc length when only given the degree and radius?
Length = angle˚/360˚ x 2∏r
How do you find the radius when the arc length IS GIVEN?
You also need the measure of the central angle because arc length/2pi*r=measure of central angle/360.
