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

Tutors Answer Your Questions about Circles (FREE)

Question 824747: The area of a circular region is numerically equal to four times the circumference of the circle. Find the length of a radius of the circle.
Click here to see answer by stanbon(75887)

Question 824911: What is the length of the diameter of a circle whose radius is 12 mm?
Click here to see answer by tommyt3rd(5050)

Question 824951: What volume of a 2.5 M stock solution of H3PO4 is needed to prepare 3.8 L of a 1.5 M H3PO4 solution? (1 point)

Select one:

a. 1.0 L
b. 2.3 L
c. 5.7 L
d. 6.3 L
Click here to see answer by josgarithmetic(39613)

Question 825091: in terms of pi, how much farther does a 70cm diameter bicycle tire travel in one revolution than a 50cm diameter tire
Click here to see answer by jim_thompson5910(35256)

Question 825210: The center of a circle that passes through the origin is located at(6,-3). What is the length of the radius of the circle?
A. 3.1
B. 6.7
C. 9.3
D. 45.2
Click here to see answer by rfer(16322)

Question 825722: The radius of circle is 2.5 cm.AB,CF are two parallel chords 3.9 cm apart.If AB = 1.4 cm,find CF (PLEASE GIVE SOLUTION TO THIS)
Click here to see answer by mananth(16946)

Question 825755: a 12 inch pizza is cut into 8 equal slices. what is the length of the crust of 1 piece of pizza? use 3.14 for r.

Click here to see answer by richwmiller(17219)

Question 825878: A circle has x intercepts 0 and 4 and y intercepts 0 and 5 . Determine the equation of the circle.
Can you please help me out? Thanks so much in advance:)
Click here to see answer by math-vortex(648)

Question 825953: An ant stands at the edge of a potter's wheel with a diameter of 12 inches. The wheel spins at 255 revolutions per minute. Answer the following questions about the ant's velocity. Use pi to represent pi.
a) What is the ant's angular velocity? Include appropriate units in your answer.
b) What is the ant's linear velocity? Include appropriate units in your answer.

Click here to see answer by Alan3354(69443)

Question 826356: How many liters of water vapor can be produced if 8.9 liters of methane gas (CH4) are combusted, if all measurements are taken at the same temperature and pressure? Show all of the work used to solve this problem.
CH4 (g) + 2 O2 (g)yields CO2 (g) + 2 H2O (g
Click here to see answer by KMST(5328)

Question 826622: P(4,2) point on circle x^2+y^2=5x
If PQ is a diameter of the circle find the coordinates of Q
Click here to see answer by josgarithmetic(39613)

Question 826828: A circle has a circumference of 100 meter. Find its area.
Click here to see answer by nerdybill(7384)

Question 827493: 1. find the area of the portion of the semi circle shown in the figure which is outside of the inscribed triangle. the figure has a triangle scalene and AC= 16 and CB=10.
Click here to see answer by Edwin McCravy(20054)

Question 827468: A circle has diameter 25 cm. how far from the centre of this circle is a chord 16 cm long?
Click here to see answer by mananth(16946)

Question 827709: Algebra 2: Write an equation of a circle with center (-2,-3) and radius 8.
Click here to see answer by KMST(5328)

Question 827899: Find he equation of all tangents to the circle x^2 + y^2 - 2x + 8y - 23 = 0
a) at the point (3,-10) on it
b) having slope of 3
Thanks so much in advance:)
Click here to see answer by Alan3354(69443)

Question 827898: Find he equation of all tangents to the circle x^2 + y^2 - 2x + 8y - 23 = 0
a) at the point (3,-10) on it
Thanks so much in advance:)
Click here to see answer by Alan3354(69443)

Question 828173: Find the equation of all tangents to the circle x^2 + y^2 - 2x + 8y - 23 = 0
a) at the point (3,-10) on it
b) having slope of 3
Can you please help me out? Thanks so much in advance:)
Click here to see answer by Alan3354(69443)

Question 828177: Find the equation of all tangents to the circle x^2 + y^2 - 2x + 8y - 23 = 0
a) having slope of 3

Thanks so much in advance:)
Click here to see answer by Alan3354(69443)

Question 828176: Find the equation of all tangents to the circle x^2 + y^2 - 2x + 8y - 23 = 0
a) at the point (3,-10) on it

Thanks so much in advance:)
Click here to see answer by Alan3354(69443)

Question 828300: The area of a circle is 225 pi square inches. find the area of the sector whose central angle is 45�.
Click here to see answer by TimothyLamb(4379)

Question 828425: *Please answer this A.SA.P!! Please help~!!
Click here to see answer by richwmiller(17219)

Question 828532: what is the radius of 14 and 17
Click here to see answer by Alan3354(69443)

Question 828816: ellis draws a circle with a diameter of 16 inches he then shades in on half of the circle what is the area of the shaded region
Click here to see answer by rfer(16322)

Question 828947: a circle is divided into two parts by a chord, 3cm away from the center, find the area of the smaller part if the circle has a total area of 201
Click here to see answer by Edwin McCravy(20054)

Question 829170: WHAT IS THE CIRCUMFERENCE OF A CIRCLE
20CM:
14CM:
8FT:

Click here to see answer by Alan3354(69443)

Question 829653: Circumference=69.1 yd
Click here to see answer by Alan3354(69443)

Question 829653: Circumference=69.1 yd
Click here to see answer by richwmiller(17219)

Question 830108: What is the circumference of a circle that has a radius of 8cm in terms of pi?
Click here to see answer by Alan3354(69443)

Question 830353: what is the area of a three quarter circle with the radius of four cm (also is the formula 2pi r)
Click here to see answer by richwmiller(17219)

Question 830276: There are two circular gardens A and B.The circumference of garden A is 1.760Km and the area of garden B is 25 times the area of garden A. find the circumference of garden B.
Click here to see answer by math-vortex(648)

Question 830494: If the area of the circle is 625pi square km, what is the diameter of the circle?
Click here to see answer by LinnW(1048)

Question 832265: Find the General Equation of the circle
5) With radius 3 touching both axes
Click here to see answer by Fombitz(32388)

Question 832265: Find the General Equation of the circle
5) With radius 3 touching both axes
Click here to see answer by nerdybill(7384)

Question 832263: Find the General Equation of the circle
4) With center at the origin and tangent to line 5x + 12y = 26
Click here to see answer by math-vortex(648)

Question 832907: Find the length of line JK if J is (4,-3) and K is (-5,9)
Click here to see answer by stanbon(75887)

Question 833445: FIND THE EQATION OF CIRCLE CONCENTRIC WITH THE CIRCLE X2+Y2-2X-6Y+4=0 AND HAVING RADIUS 7?
Click here to see answer by Edwin McCravy(20054)

Question 834148: In a circle whose radius is 6 cm, there is a central angle whose measure is 60 degrees.How long is the chord joining the endpoints of the arc cut off by the angle?
Click here to see answer by jim_thompson5910(35256)

Question 834152: What is the measure of the angle determined by the hands of clock at four o clock?
Click here to see answer by sonic1(3)

Question 835919: Complete the square to write the function in
f(x) = a(x − h)^2 + k
form. Determine the vertex and the axis of symmetry of the graph of the function.
f(x) = 8x^2 − 32x + 30
equation:
vertex:
axis of symmetry:
graph:

Click here to see answer by josgarithmetic(39613)

Question 835918: Complete the square to write the function in
f(x) = a(x − h)^2 + k
form. Determine the vertex and the axis of symmetry of the graph of the function.
f(x) = −4x^2 + 16x − 42
equation:
vertex:
axis of symmetry:
graph:
Click here to see answer by josgarithmetic(39613)

Question 836250: Sally throws a dart at the dartboard shown. Find the probability that her dart will land in the shaded area given that is equally likely that the dart will land anywhere on the dartboard.
Click here to see answer by richard1234(7193)

Question 836757: please help me solve this type of problem :A satellite orbits around the earth in an elliptical path of eccentricity 0.6 and semi-minor axis of length 12000 miles. if the center of the earth is at one of the foci,find the maximum altitude of the satelite.
Click here to see answer by Edwin McCravy(20054)

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