96 Answered Questions for the topic Geometry Circles

Geometry Circles Geometry Diameter Of Circles

12/16/15

how to find the diameter using the a length across a circle
I have to find the diameter of a pond in a question and i know only that a log that is across it is 16 ft long and the distance from that log perpendicular to the side of the circle measures 4ft.... more
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Geometry Circles Geometry Geometry Word Problems

11/28/15

Intensely Hard Circle Question
Compute the ratio of the radius of the circumscribed circle to the radius of the inscribed circle for the 30-30-120 triangle. Find the ratio.
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Geometry Circles

09/18/15

what is pi ?
same as qs 
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Geometry Circles Geometric Proofs Math Problem

09/06/15

I need the statement and reason for this proof?
circle P with line segment XW is perpendicular to YZ. prove that arc XY is congruent to X . i really need your help guys..
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Geometry Circles

08/10/15

Find AB given that B is the midpoint of DE, DE=20 and BC=25
circle with two lines crossing 
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07/30/15

Tokyo, Japan and Tehran, Iran, lie on a latitude of 38 and 47/60 degrees and longitu...
Tokyo, Japan and Tehran, Iran, lie on a latitude of 38 47' 00" and longitude of 141 2' 00" East and 52 5' 00" East, respectively. What is the length of the line of constant latitude between these... more
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07/27/15

A Circle with a radius R=8.17 has 2 congruent Tangent Lines attached to it. What is the area...
There is a Circle, with a radius of R = 8.17. On the outside of the right of the circle is a point, directly right of the midpoint of the circle. 2 congruent lines leave from the point, and touch... more
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Geometry Circles

07/21/15

If a chord 10 inches long is 5 inches from the center of a circle, find the radius of the circle.
 If a chord 10 inches long is 5 inches from the center of a circle, find the radius of the circle.
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07/19/15

hard geometry question
Four distinct points are chosen at random on a circle. LIne segments are then drawn connecting every possible pair of these points. Theses line segments divide the interior of the circle into how... more
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Geometry Circles Geometry Points Midpoint

07/19/15

weird geometry question
 The sets of points created by the midpoints of all chords of length 4 cm in a circle of radius 8 is a    A)point B)line segment C)line D)semicircle E)circle   I have absolutely no idea how... more
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Geometry Circles Radius

07/15/15

what is the radius of a circle with equation x^2+y^2-7=9
I have no idea how to do it  
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Geometry Circles

06/30/15

what is the approximate area of the shaded sector in the circle shown below? 14in. 30 degrees
a. 3.67in2 b. 7.33in2 c. 205in2 d. 51in2
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Geometry Circles

06/18/15

x^2+y^2 = 9
What is the diameter of the following circle?
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Geometry Circles

06/16/15

have circle with lines AB intersecting line DC.
solve for z.  arc AD = 40 degrees, <DEB = 124 degrees.  Both lines intersect at E.  Point E is not in center of circle.  Arc z = BC.                         D                 B      draw a... more
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Geometry Circles Circles

06/11/15

The radius of a circle is 6 meters. What is the length of a 135° arc?
i do not know this question i need help -- The radius of a circle is 6 meters. What is the length of a 135° arc?
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Geometry Circles

06/06/15

show that the points P,B, Q and T are concyclic
two circles intersect each other at points A and B. Astraight line PAQ cuts the circles at P and Q. if the tangents P and Q intersects at point T. prove the above
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Geometry Circles

06/06/15

find the radius of the circle
OABC is a rhombus whose three vertices A, B and C lie on a circle with centre O and the are of that rhombus is 32 & sq.3 cube cm
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Geometry Circles

06/06/15

prove that of any two chords of a circle, the greater chord is nearer to the centre
prove that of any two chords of a circle, the greater chord is nearer to the centre
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Geometry Circles

06/06/15

prove that the perimeter of right triangle is equal to the sum of the diameter of its incircle and twice the diameter of its circumcircle
prove the perimeter of a right triangle is equal to the sum of the diameter of its incircle and twice the diameter of its circumcircle
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Geometry Circles

06/05/15

show that AB = 6 x r
AB is a line segment and M is its mid-point. three semi-circles are drawn with AM, MB and AB as diameters on the same side of the line AB. a circle with radius r unit is drawn so that it touches... more
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Geometry Circles

06/05/15

prove that AP bisects the angle TAB
TA and TB are tangents to a circle with centre O from an external point T, OT intersects the circle at point P
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Geometry Circles

06/05/15

prove that A,Q, B and T lie on a circle
two circles intersect in points P and Q. a secant passing through P intersects the circles in A and B respectively. tangents to the circles at A and B intersect at T
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Geometry Circles

06/05/15

prove that all chords of outer circle are of equal length
for two concentric circles, if outer circle chords touches the inner circle
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Geometry Circles

06/05/15

calculate PQ, if AB = 8cm
AC is a transverse common tangent to two circles with centres P and Q and  of radii 6cm and 3cm respectively                                 
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Geometry Circles

05/27/15

calculate <AOB, <ACB, <ABC
for the figure whose AB is a side of a regular six-sided polygon and AC is a side of a regular eight-sided polygon inscribed in the circle with centre O. join O with A and B
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