75 Answered Questions for the topic Circle

09/15/16

what is the radius of a circle with circumference 73yd? Write the formula in terms of r. Find the radius using the formula C=2(pi)r. Round to nearest tenth.
what is the radius of a circle with circumference 73yd? Write the formula in terms of r. Find the radius using the formula C=2(pi)r. Round to nearest tenth.
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Circle

09/03/16

TWO CIRCLES OF RADII 10CM AND 8CM INTERSECT AND THE LENGTH OF THE COMMON CHORD IS 12CM.THEN THE DISTANCE BETWEEN THEIR CENTRES IS OPTION 1)8 2)10 3)15 4)13.3
COMPETITIVE EXAM GENERAL QUESTION
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Circle

08/17/16

With general form of circle, make it into standard form.
Complete the square and write the equation of the circle into standard form.5x^2-9x+5y^2-8y=0Find the center (h,k) and radius r.
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Circle

07/08/16

Find the area of a circle whose diameter has the endpoints (-1,3) (3,1)
Hi, I need help solving the question in the title. Thanks 
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06/23/16

Ferris wheel multiple questions
4)  Another Ferris wheel has a radius of 25 feet and reaches a maximum height of 55 feet above the ground. From the location of your seat when the wheel starts turning, it takes you 6 seconds to... more
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06/23/16

Finding the distance from ceiling to each point in the clock and finding an equation with cosine or sine
2) Clock #2: A clock has a radius of 6 inches. The center is 14.5 inches below the ceiling. Measure the distance from the ceiling to the tip of the hour hand at each hour beginning at 12 (which is... more
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Circle

06/14/16

The Beijing wheel, soon to be the world's largest Ferris wheel at 208 metres tall, will have 48 air conditioned observation capsules evenly spaced out alon
The Beijing great wheel soon to be the world's largest Ferris wheel at 208 metres tall, will have 48 air conditioned observation capsules evenly spaced out along the 622m metal ring. You will reach... more
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05/14/16

how do you find the equation of a circle with the ends of the diameter (1,16) and (-1, -18)?
how do you find the equation of a circle with the ends of the diameter (1,16) and (-1, -18)? finding the equation of a circle
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04/12/16

select a circle
select a circle . these are in circles...1,2,3,4,5,6   Assume that one circle is selected at random and each circle is equally likely to be selected. Determine the probability of selecting.   a... more
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03/28/16

Equation of circle given center and tangent line
Write the equation for a circle which has its center at (1, 2) and is tangent to the line -3x+2y= 14 Solve algebraically.   I know that the equation of a circle is r2=(x-h)2+(y-k)2. So, at this... more
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Circle

03/08/16

circle solid
The base of a solid is the circle x2 + y2 = 9. Cross sections of the solid perpendicular to the x-axis are semi-circles. What is the volume, in cubic units, of the solid? (2 points) 9x/4 18π 9π 72π
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02/15/16

equation of the circle
Put the equation of the circle in standard form, identify the center (h,k) radius r of the circle. x2+y2-2x-12y+28=0
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09/13/15

How much more pizza do you get in a large pizza that has a diameter of 1 inches than you do in a small pizza that has a diameter of 10 inches?
The teacher gives an hint. You need to find the area of each pizza.    I'm not so sure how to do this. 
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Circle Math Equation

08/06/15

Which of the following is an equation of a circle in the xy-plane with center (-1,3) that passes through the origin?
Choices: A. (x-1)2 + (y+3)2 = √10 B. (x-1)2 + (y+3)2 = 10 C. (x+1)2 + (y-3)2 = √10 D. (x+1)2 + (y-3)2 = 10   Please help. Thank you!  
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08/05/15

Question about a Circle, help please?
In circle O, CD = 44, OM = 20, ON = 19, CD is perpendicular to OM, EF is perpendicular to ON , (The figure is not drawn to scale.) Show your work. a. Find the radius. If your answer is not an... more
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07/01/15

Circle Equation with center and radius
Which of the following is an equation of the circle with the center at (-2,3) and a radius of 5 coordinate units in the standard (x,y) coordinate plane?A) x^2+y^2 +4x-6y=5B) x^2+y^2+4x-6y=12C)... more
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03/25/15

Area of a circle
Sometimes Mac takes his labrador with him to work at his autobody shop he hooks aces card to a 60 foot chain mounted on the corner of the shop which is a 40 x 80' rectangular building east enjoys... more
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10/07/14

Circle Equation
2 x^2+4 x+2 y^2+12 y = 20 is the equation of a circle with and can be written in the general form (x-h)^2 + (y-k)^2 = r^2. Find h, k, and r.
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10/07/14

Circle Equation
Find an equation of the circle with center at (4,-6) that is tangent to the y-axis in the form of (x-A)^2+(y-B)^2=C where A, B, C are constant.   What is A, B & C?
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09/23/14

Circles Math
(i) Given that the line y=mx, where m is a positive integer, does not intersect the circle x2+ y2 -4mx +3=0, find the value of m.   (ii) A line parallel to y=mx is a tangent parallel to the... more
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08/29/14

What is the radius of this equation after putting it into general circle form by completing the square? 5x^2+2x+5y^2-9y-3=0
The general format of a circle equation: (x-h)^2+(y-k)^2=r^2
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06/18/14

"Tangent AB and secant ACD are drawn to circle O from an external point A, AB = 8, and AC = 4. What is the length of CD?"
Find the length of CD.
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05/15/14

GEOMETRY - PROOF
How do I prove that three non-collinear points lie on a circle?
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Circle Center

04/27/14

what is the center of a circle with the following equation?
(x-1)2+(y+2)2=49  
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Circle Geometry Maths

02/11/14

Q4 c1 is the circle x² + y² -4y-20=0 and l is the line 2x-y+5=0
Q4 c1 is the circle x² + y² -4y-20=0 and l is the line 2x-y+5=0 (a) write down the centre and radius lenght of c1(b) Find the perpendicular distance from the centre of c1 to the line l in surd... more
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