162 Answered Questions for the topic Circles

Circles Math

04/03/20

#### Diameter, Area, Circlular - Math word problem - PLEASE HELP

Farmer Brown is prepping his circular garden for the new spring / summer season of vegetables. The garden has to be larger than 25 square feet. If the diameter of the garden is 10 cm, what is the...
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#### Prove that the two circles shown below are similar.

Prove that the two circles shown below are similar.Circle X is shown with a center at negative 2, 8 and a radius of 6. Circle Y is shown with a center of 4, 2 and a radius of 3.

01/02/20

#### Circle Theorems

Anatoli is making a cement step for his patio in the shape of a sector of a circle. He has enough cement to fill an area of 3.6 square meters (m^2) such that the central angle is 1.2 radians. What...
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#### Where do I start?

Let A be the area of a circle with radius r. If dr/dt=3, find dA/dt when r=5.So I know to use the equation A=(pi)r^2 but, I don't know where to go from there. Do I plug in 5 for r and solve?

#### Find an equation of the circles:(there are 6 questions)

a)With center (0, 5); passes through (0, 0)b)Radius 4, tangent to x-axis; contain (–5,8)c)Center on line x=3, tangent y-axis at (0, 5)d)With center (–2, 0); passes through (2, 0)e)Radius 5, tangent...
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#### How to find Chord from Arc Length and Sagitta

I am trying to find the formulas to solve the entirety of a circle segment but all I have are the arc length and the sagitta. From this can I solve for Θ or chord length? EX: I have a arc length of...
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Circles Geometry

05/03/19

#### Measurement of an arc

What is measurement of arc ABC where arc AB equals Y degrees, and arc BC = 1 1/2 X -Y degrees

Circles Geometry

04/29/19

#### How would I find the diameter of the second/larger marble?

2 marbles fit exactly, lengthwise, into a container. The smaller has a diameter of 4 cm and sits on the bottom of the jar. The larger marble sits next to the smaller one, touching both the smaller...
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Circles Geometry

04/10/19

#### AB is tangent to the circle k(O) at B, and AD is a secant, which goes through O. Point O is between A and D∈k(O). Find m∠BAD and m∠ADB, if measure of arc BD is 110°20'.

Circles Geometry

03/27/19

#### How do I find the length of an arc with coordinates?

Circles Geometry

03/26/19

#### The ratio of the circumference of circle X to the circumference of circle Y is 45 . If the diameter of circle Y is 4 units, what is the diameter of circle X ?

#### Circle diameter and revolution

A wheel of a compact car has a 25-inch diameter. The wheel of a pick up truck has 31-inch diameter. To the nearest inch, how much further does the pick up truck wheel travel in one revolution than...
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Circles Geometry

03/14/19

#### pizza problem s

The large pizza from pet’s has a diameter of 16 inches and costs $14.99 the large pizza at Gino’s is 18 inches in diameter and costs 16.49 which pizza costs more per area

#### Find the measure of arc length ab

A circle with a radius of 7 and a chord measure of 12.

02/18/19

#### Find the measure of arc length ab.

A circle with a radius of 8 and a chord measuring at 10.

#### FInd the measure of the segment

M has radius 4.From external point E,a tangent is drawn meeting M at T. Line ET has length 1/3 the length of line EM. Find ET.

02/04/19

#### Circle question-Precalculus

A small radio transmitter broadcasts in a 44 mile radius. If you drive along a straight line from a city 49 miles north of the transmitter to a second city 61 miles east of the transmitter, during...
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Circles

01/14/19

#### Center (6,-5) passing through point (1,7)

Center (6,-5) passing through point (1,7)

Circles

12/21/18

#### Slope of line passing through origin and tangent to circle.

If a line passing through origin touches the circle x2 + y2 - 6x + 8y + 9 = 0, then its slope may be : (1)12/7(2)-12/7(3)24/7(4)-24/7

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