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## Circle Answers

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Angle ABC = x Line BC is tangent to circle centre O Line AOC is a straight line Find angle ACB in terms of x I got 270-2x: Angle OAB = OBA = x-90 Angle ACB= 180-(x-90)-x Apperently...

I watched on Jeopardy that all the kids thought the Great Wall of China was bigger and I wanted to know so tutor away!

If the top surface of a particular slice of pie is a sector of a circle with a vertex angle measuring 20 degrees and the length of the arc is 3.14π units, what is the perimeter(left in terms of π)...

Detail of figure - draw a circle with centre o and diametre AB and chord CD parallel to it .through chord CD make an angle CED above centre O of the circle at any point on the circle .

So here is the explanation. Draw a circle with center O. Draw a line vertically upward from O to the circumference and mark it A. Draw a line from O vertically downward and mark the...

A circle with centre O .draw two chords AC and BC joining both ends of two chords to centre O .now join A to B then draw also JOIN OC which intersect AB at M .

we know that the circumference of the circle is 2(pi)r so if we draw lines from each point to the centre then we should get the area of the circle and it should be 2*(pi)*r*r , ;) instead of (pi)*r*r...

AB and CD are two chords of a circle intersecting each other at point E. Prove that AEC = 1 2 (Angle subtended by arc CXA at centre + angle subtended by arc DYB at the centre).    Answer...