Questions on Geometry: Circles and their properties answered by real tutors!

Tutors Answer Your Questions about Circles (FREE)

Question 346024: P, Q and R are three points on a circle. If the ratio of arc pq:qr:pr = 3:4:5, find the measures of arc PR, QR and PS.
Click here to see answer by Fombitz(13828)

Question 346572: A regular hexagon is inscribed in a circle . if the perimeter of the hexagon is 54, find the circumference of the circle in terms of pi ?

Click here to see answer by jrfrunner(365)

Question 346646: Suppose you have a pipe with a circumference of 8 cm and length of 30 cm and that 8 turns of wire are wrapped around the pipe. What is the length of the wire?
Click here to see answer by Alan3354(30993)

Question 347053: Hi I am stuck, any help would be great, thanks!
Explain whether any two arcs of the same circle are similar.
Click here to see answer by Fombitz(13828)

Question 347070: A pivot- circle irrigation system waters part of a fenced square field . if the spray extends to a distance of 72 feet, what is the total length of the fence around the field ?

Click here to see answer by CharlesG2(828)

Question 347210: What is the radius of a circle with a circumference of 62.8 meters?
Click here to see answer by rfer(12654)

Question 347638: How far would you have traveled if you went all the way around a circle with a diameter of twenty feet?
Click here to see answer by Fombitz(13828)

Question 348741:
If angle ADB = 70 degrees, then
what does angle ABD, arc AB, and arc AD equal?
Thanks!
Click here to see answer by solver91311(16872)

Question 348720:
so if m arc ST = 118 degrees, then what do angles T and S equal?
Thanks!
Click here to see answer by nyc_function(2733)

Question 349269: A large pipe is placed next to a wall and a 1 ft high block is placed 5 ft from the wall to keep the pipe in place as show in the figure. What is the radius of the pipe ? The answer in the book says 6-square root 10, but I'm not sure how they got that answer. I have a link to the image from my textbook.
http://img237.imageshack.us/img237/2158/dsc00343ts.jpg
Click here to see answer by Alan3354(30993)

Question 349563: pq and rs are two parallel horizontal chords 6 cm and 8 cm long in the upper half of a circle.if the radius of the circle is 5cm . the distance in cm between the chords is
A 1 B 2 C 3 D 4
Click here to see answer by mananth(12270)

Question 349647: Find the area of the region included between the circle:
x2 + y2 + 2 x + 10y + 27 = 0
and the parabola
y2 + 10y – x + 23 = 0
Click here to see answer by Fombitz(13828)

Question 349885: find the diameter of the circle with the given measurement.Leave answers in terms of pi

C=14
Click here to see answer by Alan3354(30993)

Question 350941: Circumference of a circle. If the circumference of a
circle is 5.68 10^9 feet, then what is its radius?
Click here to see answer by nerdybill(6951)

Question 351159: I am doing a project for geometry and I was wondering if a rainbow is a hemisphere? Thanks!
Click here to see answer by stanbon(57282)

Question 352251: Circumference of a circle ?
Click here to see answer by jim_thompson5910(28536)

Question 352514: I need to find the radius of a 42 inch diameter circle
Thanks
Click here to see answer by Jk22(389)

Question 352975: AP = X+7 and CP = 2x-11 Find BP
Click here to see answer by Fombitz(13828)

Question 353607: Need to find the length of a fiberglass pole? Forms a curve with a 4 foot mid-point, 8 feet wide. Like making a dome tent with an 8 foot base.
Click here to see answer by Alan3354(30993)

Question 355100: A circle has a chord of length 10 cm. This chord is the perpendicular bisector of a radius of that circle. What is the area of the circle in square centimeters?
Click here to see answer by robertb(4012)

Question 355212: if a circle is 48 inches in diameter what is the measurement of the border?
Click here to see answer by katealdridge(100)

Question 355249: Given two circles, the larger one has a diameter that is thrice that of the smaller circle. How many times larger is the area of the larger circle?
a. 3
b. 5
c. 8
d. 9
Click here to see answer by Alan3354(30993)

Question 355286: On the circle with the center c, CD perpendicular AD, AB=24 and CD=5.Find the radius of the circle.
a. 17
b. 7
c. 13
d. 19
e. can't be determined
My answer is e. Is it correct?
Click here to see answer by Fombitz(13828)

Question 356061: classify the conic section and write the equation in standard form for 9x^2 36Y^2 54x-144y-99=0
Click here to see answer by Alan3354(30993)

Question 356213: What is the circumference of a circle inscribed in a square whose side is 12 cm?
Click here to see answer by mananth(12270)

Question 356198: Find the area of the region included between the circle x2+y2+2x+10y+27=0 and the parabola y2+10y-x+23=0
Click here to see answer by Alan3354(30993)

Question 357127: If the radius of a circle is increased by 10% then the area is increased by
Click here to see answer by rfer(12654)

Question 357332: A circle of radius 2 is inscribed in a larger circle. The area inside the larger circle but outside the smaller circle is shaded. what fraction of the larger circle's area is shaded?
Click here to see answer by edjones(7569)

Question 361773: if a radius measures 6 cm. How long is the diameter
Click here to see answer by Fombitz(13828)

Question 362472: A circle measures 8 feet in diameter. What's its area to the nearest foot?
Click here to see answer by Alan3354(30993)

Question 362411: A circle is inscribed in an equilateral triangle, and a square is inscribed in the circle. The ratio of the area of the triangle to the area of the square is:
(a)√3:1 (b) √3:√2 (c) 3√3:2 (d) 3:√2

Click here to see answer by HasanSahin(52)

Question 363031: Each of two congruent circles drawn in the interior of a square is tangent to two adjacent sides of the square and to the other circle, as shown in the diagram. If the Measure of a side of the square is 16, find the radius of each circle.
Click here to see answer by Fombitz(13828)

Question 363330: ir the radius is 19 inches what would the diameter be???
Click here to see answer by robertb(4012)

Question 363356: if the area in the form of a circle is to be roped off by a rope 10m long what will be the radious of this area
Click here to see answer by jim_thompson5910(28536)

Question 363471: Find the distance all the way around the boundary of a 100 degree sector of a circle 6" in radius
Click here to see answer by mananth(12270)

Question 363723: 94. Areas of two circles. The radius of a circle is 1 meter
longer than the radius of another circle. If their areas differ
by 5 square meters, then what is the radius of each?
Click here to see answer by robertb(4012)

Question 365014: a road 12 m wide runs through a tunnel 18m high the cross section of the tunnel is a major segment of a circle calcute the radius of the circle
Click here to see answer by CharlesG2(828)

Question 365516: What is the circumference of a circle whose radius is 20 feet? Leave answer in terms of π.
Click here to see answer by ewatrrr(10682)

Question 366534: All variables in the following exercises represent positive
numbers.
Simplify the sums and differences. Give exact answers
square 5 - 3square 5
Click here to see answer by rfer(12654)

Question 366557: A pizza with a diameter of 18 inches is cut into 10 equal slices. To the nearest square inch, what is the area of each slice of the pizza?
Click here to see answer by Fombitz(13828)

Question 366507: Simplify:
5/square2-1 + 3/square2+1
Click here to see answer by Fombitz(13828)

Question 366780: What is the sum of the coordinates of the center of the circle whose equation is
x^2 + y^2 - 6x - 10y + 30 = 0 ?
Click here to see answer by stanbon(57282)

Question 366780: What is the sum of the coordinates of the center of the circle whose equation is
x^2 + y^2 - 6x - 10y + 30 = 0 ?
Click here to see answer by mananth(12270)

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