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

Tutors Answer Your Questions about Circles (FREE)

Question 838427: For what values of x between 0 and 2pi does y=secantx have vertical asymptotes?
a)pi/2,3pi/2 b)pi/4,3pi/4 c)0,pi,2pi d)none
Click here to see answer by lwsshak3(11628)

Question 838788: Graph the circle (x + 2)2 + (y + 1)2 = 32. Label the center and at least four points on the circle.
Click here to see answer by Fombitz(32388)

Question 838843: Find the equation of the circle whose center is at the point (5,2) and which touches the line joining the points (0,5) and (4,1).
Click here to see answer by Alan3354(69443)

Question 838484: The diameters of 2 circles are in the ratio 3:4 and the sum of their areas is equal to the area of a circle whose diameter measure 30m. Find the diameters of the 2 circles.
A= 706.5
Click here to see answer by ankor@dixie-net.com(22740)

Question 839165: Hi! I'm having trouble with this question
Dan Perkin's goat is attached to the corner of the 14-foot-by-7-foot pump house by a 14-foot length of rope. The goat eats the grass around the pump house. This patter consists of three-fourths of a circle of a radius 14 feet and one-fourth of a circle of radius 7 feet. What area of grass can Dan Perkin's goat eat? (Use pi=3.14 as an approximate value)
I tried combining the two radius', and tried finding the areas separately then adding. I simply don't know how to write this equation out. Please help.
Click here to see answer by mananth(16946)

Question 839280: equation of tangent to the circle x^2+y^2=a^2 for all values of m at point (x1,y1)is...pleas tell
Click here to see answer by ewatrrr(24785)

Question 839353: A circular swimming pool is 16 feet across and has a cover. How much material is in the pool cover?
Click here to see answer by Alan3354(69443)

Question 839640: Calculate to the nearest square foot the area of a circle with a 4cm radius, using 3.14 for pie.
Click here to see answer by ewatrrr(24785)

Question 839684: If a circle has a radius of 10 cm, what is the area of a sector defined by a central angle of 72?
Click here to see answer by stanbon(75887)

Question 839555: given a circle, draw two chords who's lengths are in the ratio 1:2 and who's distances from the center are in the ration 2:1. Find the length of each chord in terms of the radius 'r' of the circle. Find their lengths if r = 10 cm.
Click here to see answer by ankor@dixie-net.com(22740)

Question 840244: The circumferences of two circles are in the ratio of 2:5. The radius of the smaller circle is 16 in. What is the radius of the larger circle?
Click here to see answer by Fombitz(32388)

Question 841222: Find an equation for the cicle centred at the
origin that passes through each point.
a) (3,-4)
b)(-5,2)
c)(3,7)
d)(-6,-2)
Please show your work

Click here to see answer by josgarithmetic(39613)

Question 841221: state the radius of the circle defined by each
equation and give the coordinates of one point
on the circle.
a) x^2+y^2=49
b) x^2+y^2=15
c) x^2+y^2=64
d)x^2+y^2=1.44
Click here to see answer by Edwin McCravy(20054)

Question 841508: The poster is rectangular and its coordinates are at (4,2),(7,8),(7,2),(x,y)
what is x+y?
Click here to see answer by jim_thompson5910(35256)

Question 841777: Please help me solve this problems:
1.A circle whose centre lies on the line y=3x-1, touches both axes:
find:
(A) the equation of the circle
(B) the points where the circle intersects the line 2y+x=1
2.Find the equation of the circle which passes through the points (0,3), (-1,2) and (7,-4)
3.A circle passes through the points (1,-15) and (-11,3). Its centre lies on the line 5y-12x+22=0. Find the coordinates of the centre, the radius and the equation of the circle.
4.The circle X^2 + Y^2 + 2x - 4y - 11 = 0 and the line X-y+1=0 intersect at A and B.Find the equation of the circle having AB as diamater.

Thank you in advance!
Best regards,
Kalin Mihow
Click here to see answer by Alan3354(69443)

Question 841915: The point P(3,2) is on a circle with centre at (2, -2).
Determine the equation of the tangent to the circle at P.

Click here to see answer by ewatrrr(24785)

Question 842224: If a circle has a diameter of 86 centimeter, what is the radius of the circle
Click here to see answer by ewatrrr(24785)

Question 842118: In an infinite sequence of circles, the radius of the first circle is 90cm and the radius of each successive circle is 2/3 of that of its predecessor. Find the sum of the areas of the circles.
Click here to see answer by Fombitz(32388)

Question 842366: if the circumference of a circle is 10pi in.,what is the area,in square in.,of the circle? Please Help Thank You.
Click here to see answer by josmiceli(19441)

Question 842371: If the radius of circle X is 5 times the radius of circle Y, then how many times greater is the circumference of circle X than the circumference of circle Y?

Click here to see answer by Alan3354(69443)

Question 842536: how can i find the answer of D,E,and F .. by this equation 1+4+D-2E+F=0 ..??
what will be the answers for D,E,and F..?? how can i solve it??.. can you help me?? .. =)
Click here to see answer by Fombitz(32388)

Question 842629: a car travels 100 inches in one full rotation. what is the approximate radius of the tire?

Click here to see answer by josmiceli(19441)

Question 843028: TOPIC: CIRCLES DETERMINED BY THREE CONDITIONS
Write the equation (standard and general form)of the circle
1. through (-1, 2), (1, 1), and (3, 2)
Click here to see answer by richwmiller(17219)

Question 844836: a circle whose center is the point (-2,6) is tangent to the x-axis. find the coordinates of the point of tangency
Click here to see answer by richwmiller(17219)

Question 845257: a circle with center at (4,6) passes through (4,0) find the area of the circle use 3.14
Click here to see answer by richwmiller(17219)

Question 845586: Find the center and radius of the circle x^2+y^2-8x-10y+32=0
Click here to see answer by ewatrrr(24785)

Question 846124: How do I sketch the graph of a circle with the equation of (x+3)^2+y^2=9
Click here to see answer by richard1234(7193)

Question 846124: How do I sketch the graph of a circle with the equation of (x+3)^2+y^2=9
Click here to see answer by Fombitz(32388)

Question 846163: How deep is a well that takes 8 cranks on a six inch diameter windlass to raise the bucket?
Click here to see answer by Alan3354(69443)

Question 846575: Find the point of intercept to the tangent of a circle at (x^2 y^2-2x 3y=14 and x^2 y^2 3x 6y=24)
Click here to see answer by Fombitz(32388)

Question 847113: a circle with a radius of 3 feet had a circumference how many feet long?leave your answer in terms of pi

Click here to see answer by ewatrrr(24785)

Question 847328: Two circles have the same center. The radius x of the smaller circle is 5 units less than
the radius of the larger circle. How many more square units does the larger circle cover?

Click here to see answer by josgarithmetic(39613)

Question 847338: If the circumfrence of the rim of the wheel is 27 inches how long is each spoke?
Click here to see answer by stanbon(75887)

Question 847348: If the diameter of a circle is double the diameter of a second circle, what is the ratio of area of the first circle to the area of the second?
Click here to see answer by fcabanski(1391)

Question 847340: Is it possible to find a circle whose circumference is 132 ft. and whose area is less than 1 ft?
Click here to see answer by Alan3354(69443)

Question 847340: Is it possible to find a circle whose circumference is 132 ft. and whose area is less than 1 ft?
Click here to see answer by stanbon(75887)

Question 847521: A Solid Cylinder of Radius 4cm and Length 8cm is melted down and recast into a solid cube.Find the side of the cube.
Click here to see answer by Alan3354(69443)

Question 847527: draw circle whose diameter is 8cm . also draw a radius for each and measure it. with steps

Click here to see answer by Alan3354(69443)

Question 847569: find the centre of a circle passing through the points (6,-6) (3,-7) (3,3). also find the radius.
Click here to see answer by ewatrrr(24785)

Question 847569: find the centre of a circle passing through the points (6,-6) (3,-7) (3,3). also find the radius.
Click here to see answer by richwmiller(17219)

Question 847824: What is the circumference of a circle with area of 25π sq. cm?
Click here to see answer by richwmiller(17219)

Question 848429: Can you please help me to find the equation of circle passing through the point(4,-2) which touches the axes such that the whole of the circle lies in fourth quadrant.
Click here to see answer by richwmiller(17219)

Question 848996: what are three different circles with the property 'value of the circumference is greater than the value of the area?'
Click here to see answer by richard1234(7193)

Question 849180: If the radius of a circle is 4 units and its center (0;0),what is the equation of the circle?
Click here to see answer by Alan3354(69443)

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