Math

In a circle whose center is O, arc AB contains 100°. Find the number of degrees in angle ABO.

asked by Fiyi
  1. ABO is an isosceles triangle ... AO and BO are radii of the circle
    ... so angles A and B are equal ... A = B

    central angle O equals the arc AB ... O = 100º

    A + B + O = 180º

    posted by scott

Respond to this Question

First Name

Your Response

Similar Questions

  1. Math

    In a circle whose center is O, arc AB contaisn 100 degrees. Find the number of degrees i angle ABO?
  2. Geometry

    I have a circle with a Tangent line, DE, running along it and connecting with another line, FC, which runs through the center of the circle to the other side.I have connected the center of the circle with point E on the edge of
  3. Geometry

    I have a circle with a Tangent line, DE, running along it and connecting with another line, FC, which runs through the center of the circle to the other side.I have connected the center of the circle with point E on the edge of
  4. math

    Whats the difference between an arc [of a circle]'s length and measure? And how do you find each of them? The "measure" of an arc is the angle that it subtends from the center of the circle. Call that angle A. The length of the
  5. Math

    A minor arc of a circle subtends an angle of 105 degree at the center of the circle. If the radius of the circle is 8.4 cm, find the length of the major arc. 22/7
  6. math

    An angle of 1.8 radians at the center of the circle subtends an arc of length 23.4cm. Find: (a) The radius of the circle (b) The area of the sector enclosed by the arc and the radii.
  7. Geometry

    Trying to help my Autistic child with geometry. Need a simple step by step explanation and answer please. In this open ended question, find each item and include an explanation of how you found each one. Find arc AD. Find angle
  8. geometry

    In circle P, arc EN=66, angle GPM=89, and GN is the diameter. Find the measure of angle EGN. The answer is 33º but I'm not sure how you get it. There is a theorm that says the inscribed angle of a circle arc is 1/2 the arc (or
  9. Algebra

    A tennis player's swing moves along the path of an arc. If the radius of the arc's circle is 4 feet and the power and the angle of rotation is 100 degrees, what is the length of the arc?
  10. physics

    A thin non-conducting rod is bent to form the arc of a circle of radius a and subtends an angle at the center of the circle. A total charge q is spread uniformly along its length. Find the electric field at the center of the

More Similar Questions