Wednesday

April 16, 2014

April 16, 2014

**Recent Homework Questions About Geometry**

Post a New Question | Current Questions

**Geometry**

Find the midpoint of the segment with the given endpoints. M(–2, 1) and O(–3, 2)
*Tuesday, March 25, 2014 at 5:14pm*

**Pre Algebra**

http://www.mathsisfun.com/geometry/square-pyramid.html
*Tuesday, March 25, 2014 at 5:09pm*

**geometry**

translations or rotations or scaling alone are unaffected by order. Toss in a mix of those, and the order makes a big difference. Reflections in general also depend on order.
*Tuesday, March 25, 2014 at 2:21pm*

**geometry**

is every composition of transformations cumalitive? In other words, does the order matter? I think it depends on transformation, but I'm not sure
*Tuesday, March 25, 2014 at 2:03pm*

**geometry cumulative**

oldv = pi r^2 h newv = pi (2/5 r)^2 (4h) = pi * 4/25 r^2 * 4h = 16/25 pi r^2 h = (16/25) * oldv
*Tuesday, March 25, 2014 at 12:51pm*

**geometry cumulative**

A cylinder’s radius is reduced to 2/5 its original size and the height is quadrupled. How has the volume of the cylinder changed?
*Tuesday, March 25, 2014 at 12:34pm*

**geometry**

It's C.
*Tuesday, March 25, 2014 at 12:22pm*

**Geometry B**

x^2 + y^2 − 2x + 2y − 1 = 0 , notice how we indicate exponents complete the square x^2 + y^2 − 2x + 2y = 1 x^2 - 2x + 1 + y^2 + 2y + 1 = 1+1+1 (x-1)^2 + (y+1)^2 = 3
*Tuesday, March 25, 2014 at 11:01am*

**geometry**

The equation x2 + y2 − 2x + 2y − 1 = 0 is the general form of the equation of a circle. What is the standard form of the equation?
*Tuesday, March 25, 2014 at 9:15am*

**Geometry B**

The equation x2 + y2 − 2x + 2y − 1 = 0 is the general form of the equation of a circle. What is the standard form of the equation?
*Tuesday, March 25, 2014 at 9:15am*

**Geometry**

That's what I get. Good work.
*Tuesday, March 25, 2014 at 12:07am*

**Geometry**

so you'd take sin or 21 and then multiply that by 3.5, to get h, right? I did that and I got 1.25 when rounded. Is that right?
*Tuesday, March 25, 2014 at 12:04am*

**Geometry**

h/3.5 = sin 21°
*Monday, March 24, 2014 at 11:59pm*

**Geometry**

A fighter plane observes a target on the ground with an angle of depression of 21 degrees. The target is 3.5 miles away along a direct line of sight. How high is the fighter plane? Round to hundredths. Please help!
*Monday, March 24, 2014 at 11:33pm*

**Math Geometry**

356.8195481472908
*Monday, March 24, 2014 at 6:46pm*

**geometry**

dodecahedron
*Monday, March 24, 2014 at 6:14pm*

**geometry**

gerri raced around all the faces of a three-dimensional shape.she drew the following polygons.what three-dimensional was gerri tracing.
*Monday, March 24, 2014 at 5:02pm*

**Geometry**

You're welcome.
*Monday, March 24, 2014 at 11:28am*

**Geometry**

thank you
*Monday, March 24, 2014 at 11:25am*

**Geometry**

http://www.mathsisfun.com/definitions/square.html http://www.mathsisfun.com/geometry/rectangle.html
*Monday, March 24, 2014 at 11:23am*

**Geometry**

you're kidding, right? The definition of a square specifies that all 4 sides are equal. That's what equilateral means. In a rectangle, such as a book, a desk top, a door, etc. the sides are not all equal. So, no for rectangles.
*Monday, March 24, 2014 at 11:22am*

**Geometry**

Yes.
*Monday, March 24, 2014 at 11:20am*

**Geometry**

All square and all rectangles are equilateral?
*Monday, March 24, 2014 at 11:17am*

**Geometry**

All rectangles are square?
*Monday, March 24, 2014 at 11:16am*

**Geometry**

all square and all rectangles are equiangular?
*Monday, March 24, 2014 at 11:15am*

**geometry**

/?gfe_rd=cr&ei=ybIvU7KZAcaE8QfLzYDoDQ
*Monday, March 24, 2014 at 12:21am*

**Math - Quadratics & Analytical Geometry**

I have a test tomorrow with a few sample questions that are expected to be on the test that I do not know how to properly do. 1)Find the slope intercept equation of the line passing through the intersection of the lines 2x-4y=1 & 3x+4y=4 and parallel to the line 5x+7y+3=0 2)...
*Sunday, March 23, 2014 at 6:13pm*

**Geometry**

Dodecagon
*Sunday, March 23, 2014 at 10:09am*

**Geometry**

thanks Steve
*Friday, March 21, 2014 at 3:03pm*

**Geometry**

that would be a good guess, if you want to find the distance, eh?
*Friday, March 21, 2014 at 3:01pm*

**Geometry**

do I use the distance formula
*Friday, March 21, 2014 at 2:52pm*

**geometry**

the center is at the midpoint of the diameter. So, just take the average of the end coordinates to get the center.
*Friday, March 21, 2014 at 2:45pm*

**Geometry**

the distance from end to end is twice the distance from midpoint to end. That should get you started. I assume you know how to get the distance between two points. . .
*Friday, March 21, 2014 at 2:44pm*

**Geometry**

CD has an endpoint at (2,-1)and a midpoint at (8,3). which measure is closest to the length of CD?
*Friday, March 21, 2014 at 2:42pm*

**geometry**

a circle has diameter endpoints of A(5,10) and B(-3,4). what are the coordinates of the center of the circle
*Friday, March 21, 2014 at 1:19pm*

**Math (check answers)**

Nope. http://www.mathsisfun.com/geometry/pyramids.html
*Thursday, March 20, 2014 at 12:42pm*

**geometry**

if two of the points are a diameter apart, the triangle is a right triangle. So, given that the first two points are on the same semi-circle, which they must be, then we want the probability that the third point is on the same semi-circle. If it is not, then the triangle will ...
*Thursday, March 20, 2014 at 5:19am*

**geometry**

Three points are chosen uniformly at random from the perimeter of circle. The probability that the triangle formed by these is acute can be expressed as a/b where a and b are co prime positive integers. What is the value of a+b?
*Thursday, March 20, 2014 at 1:40am*

**geometry - typo**

Read what you wrote. That's a might small fence.
*Thursday, March 20, 2014 at 12:15am*

**geometry**

Marta is standing 4ft. Behind a fence 6 inches tall. When she looks over the fence, she can just. See the top of a building. She knows that the building is 32 ft. 6 inches behind the fence. Her eyes are 5 ft. From the ground. How tall is the building?
*Thursday, March 20, 2014 at 12:10am*

**Geometry**

Thanks bob
*Wednesday, March 19, 2014 at 8:47pm*

**Geometry**

reflection about x=1 that means, (x,y)>(-(x-1)+1, y-1) or (x,y)>(-2,6) or -x+2=-2 or x=4 and y-1=-6 or y=-5 so P is (4,-5)
*Wednesday, March 19, 2014 at 8:41pm*

**Geometry**

I am pulling my hair out trying to figure out glide reflections. P-->P'(-2,-6) for the glide reflection where the translation is (x,y)-->(x,y-1) and the line of reflection is x=1?? A)(4,-5) B)(-2,-7) C)(-2,-5) D)(4,-6) Help please, I am a mom pulling her hair out. ...
*Wednesday, March 19, 2014 at 8:22pm*

**geometry**

1 rev is distance of pi D so pi D feet/9 minutes = speed in feet/min .495 mi/h * 5280 ft/mi * 1 h/60 min = 43.56 feet/min SO pi D/9 = 43.56 D = 9 (43.56)/pi or D = 125 feet
*Wednesday, March 19, 2014 at 7:19pm*

**geometry**

A person riding the original Ferris Wheel is traveling at a speed of 0.495 mph. If one revolution takes 9 minutes, what is the diameter of the Ferris Wheel? Show your work.
*Wednesday, March 19, 2014 at 7:08pm*

**geometry**

A vertical pole 10 meters high casts a shadow 8 meters long. At the same time, a nearby tree casts a shadow 40 meters long. Find the height of the tree in meters.
*Wednesday, March 19, 2014 at 1:48pm*

**Geometry**

6x-8 + 7x+3 + 3x-7 = 180 x = 12 So, evaluate for each angle, then sort them.
*Tuesday, March 18, 2014 at 1:07pm*

**Geometry**

In (triangle)EFG, if m<E = 6x - 8, m<F = 7x + 3, and m<G = 3x - 7. State the sides correctly ordered from longest to shortest.
*Tuesday, March 18, 2014 at 11:35am*

**geometry**

Well, across line L, it would be just the opposite. It would basically be a backwards D. Then across line M it would be a regular looking D again.
*Tuesday, March 18, 2014 at 4:53am*

**geometry**

newarea = originalarea * (1/7)(1/7)(1/1)
*Monday, March 17, 2014 at 1:08pm*

**geometry**

If the width and height of a rectangular prism are each shrunk to one seventh of the original size but the length remains the same, what is the formula to find the modified surface area?
*Monday, March 17, 2014 at 1:03pm*

**Geometry**

I could not figure this one out. Please help me.
*Monday, March 17, 2014 at 12:44pm*

**Geometry**

30
*Monday, March 17, 2014 at 11:41am*

**Geometry**

Use the Pythagorean Theorem: 400^2 + 1050^2 = d^2 160,000 + 1,102,500 = d^2 1,262,500 = d^2 1,123.6 = d
*Sunday, March 16, 2014 at 11:47am*

**Geometry**

Christopher wants to determine how far away a helicopter is from where he is standing. He knows the helicopter is sitting on the edge of a roof of an apartment building that is 400 feet high and 1,050 feet from where he is standing. Using the information in the drawing, ...
*Sunday, March 16, 2014 at 11:41am*

**geometry**

make a sketch, join the centre to A, and complete the right-angled triangle. let the distance from the centre to the chord be x x^2 + 5^2 = 13^2 x^2 = 169-25 = 144 x = √144 = 12 Where does CD enter the picture? Where is D ? Your opening sentence of "center C has a ...
*Saturday, March 15, 2014 at 4:39pm*

**geometry**

center C has a radius of 13.Chord AB=10.find the distance from the center of the circle to chord AB. CD=?
*Saturday, March 15, 2014 at 3:37pm*

**geometry**

False - just two external tangents
*Saturday, March 15, 2014 at 12:09pm*

**geometry**

T or F two coplanar circles with two points of intersection will have four common tangents?
*Saturday, March 15, 2014 at 12:02pm*

**geometry**

As I understand the question, you simply want the circumference of a sector of central angle 7(15°) or 105° with a radius of 24 cm circumference of a circle with radius 24 is 48π cm so using a simple ratio ... 105/360 = x/48π gives an arc length of 105(48&#...
*Saturday, March 15, 2014 at 9:31am*

**geometry**

A Japanese fan can be made by sliding open its 7 small sections (or leaves), which are each in the form of sectors of a circle having central angle of 15. If the radius of this fan is 24 cm, find out the length of the lace that is required to cover its entire boundary...
*Saturday, March 15, 2014 at 9:14am*

**Geometry**

F U C K S H I T AL HAIL HITLER !@#$%^&
*Friday, March 14, 2014 at 8:02pm*

**Geometry**

!@#$%^&
*Friday, March 14, 2014 at 8:01pm*

**Geometry**

ABC has side lengths of 10 units, 20 units, and 24 units. XYZ is similar to ABC and its longest side is 60 units in length. What is the perimeter of XYZ
*Friday, March 14, 2014 at 11:07am*

**math**

http://www.learner.org/interactives/geometry/3d_prisms.html
*Thursday, March 13, 2014 at 8:19pm*

**Geometry**

recall that if the legs of a right triangle are a and b, and the hypotenuse is c, then the Pythagorean Theorem states that a^2 + b^2 = c^2 So, the height of the triangle is 12 There are several commonly used right triangles which you would do well to commit to memory: 3-4-5 5-...
*Thursday, March 13, 2014 at 5:10pm*

**geometry**

v-2/81pir2h
*Thursday, March 13, 2014 at 4:23pm*

**Geometry**

Can you please explain this to me?
*Thursday, March 13, 2014 at 2:28pm*

**Geometry**

5^2 + height^2 = 13^2
*Thursday, March 13, 2014 at 2:03pm*

**Geometry**

Find the area of the composite figure(right triangle), where the hypotenuse is 13m, base is 12m and the height is not given?
*Thursday, March 13, 2014 at 1:54pm*

**Linear Algebra**

y=4x+3 and y=4x+4 a. one b. two c. infinitely many d. none ------------------- Those two lines are PARALLEL. They never cross!! No solutions in Euclidean geometry (There are in other systems of geometry)
*Thursday, March 13, 2014 at 1:53pm*

**geometry**

variable L= length and we have 12:2 is = 6 and then the ratio 2/3 is 2/3 L=9 check: 12-9=3 If they asking continues answer will be 3 so both sides are make sense 6=2/3(9) check from the 12 feet long we have 12= L+3= 12=12 if this helpful 6= 6
*Wednesday, March 12, 2014 at 11:14pm*

**MATH**

http://www.mathsisfun.com/geometry/construct-linebisect.html
*Wednesday, March 12, 2014 at 7:01pm*

**Geometry**

by similar triangles divide hypotenuse into x and 29-x x/10 = 10/(29-x) 100 = 29 x - x^2 x^2 -29 x + 100 = 0 (x-25)(x-4) = 0 so the little triangle has short arm 4 and the big one has long arm 25 sqrt (100 + 16) = sqrt(116) = 2 sqrt(29) sqrt (100+625) = sqrt(725) = 5 sqrt(29) ...
*Wednesday, March 12, 2014 at 4:58pm*

**Geometry**

The length of a hypotenuse of a right triangle is 29 feet. The Altitude drawn perpendicular to the hypotenuse is 10 feet. What are the lengths of the two legs?
*Wednesday, March 12, 2014 at 4:44pm*

**Geometry**

A car tire rotates when you drive. How is this type of rotation different from a rotation in Geometry? What other type of transformation is happening to the car tire? Thanks!
*Tuesday, March 11, 2014 at 4:45pm*

**Geometry**

17x = 408 x = 24
*Monday, March 10, 2014 at 8:40pm*

**Geometry**

Huh? in a rectangle the diagonals are equal. 18 x - 28 = x + 380 17 x = 352 x = 20.7 etc
*Monday, March 10, 2014 at 7:08pm*

**Geometry**

In rectangle PQRS, PR=18x-28 and QS=x+380. Find the value of x and the length of each diagonal.
*Monday, March 10, 2014 at 5:46pm*

**plane geometry**

a = 1/2 r^2 (θ-sinθ) 4.3 = 1/2 * 4 (θ-sinθ) θ-sinθ = 2.15 Solve using your favorite numerical or graphical method to get θ = 2.63511
*Monday, March 10, 2014 at 5:05pm*

**geometry**

X = 4 r = 7 = hyp. cos A = X/r = 4/7 = 0.57143 A = 55.15o
*Monday, March 10, 2014 at 4:58pm*

**Geometry**

y+4 = 2(x-8)
*Sunday, March 9, 2014 at 6:55pm*

**Math Geometry**

1 1/4 in. = 5/4 in. Width = W in. Length = 5/4 * W = 5W/4 in. Area = Length * Width = 5W/4 * W = 180 1n^2. 5W^2/4 = 180 Multiply both sides by 4: 5W^2 = 720 W^2 = 144 W = 12 in. = Width 5/4 * 12 = 15 in. = Length.
*Sunday, March 9, 2014 at 4:54pm*

**Geometry**

What is an equation in point-slope form for the line perpendicular to y=2x+13 that contains (8,-4)?
*Sunday, March 9, 2014 at 4:12pm*

**Geometry**

slope: 14/17 y-8 = 14/17 (x-10) y = 14/17 x - 4/17
*Sunday, March 9, 2014 at 12:07pm*

**Geometry**

Write an equation in slope-intercept form of the line through points S(-7,-6) and T(10,8).
*Sunday, March 9, 2014 at 10:59am*

**please help this is a geometry question**

-7
*Saturday, March 8, 2014 at 12:55pm*

**Geometry**

(3,-6)
*Friday, March 7, 2014 at 5:18pm*

**Math Geometry **

Marisol is painting on a piece of canvas that has an area of 180 square inches. The length of the Painting is 1 1/4 times the width. What are the dimensions of the painting this is for elementary school so make it simple
*Friday, March 7, 2014 at 5:06pm*

**Math Geometry**

x * (5/4)x = 180 x^2 = 144 ...
*Friday, March 7, 2014 at 4:55pm*

**Math Geometry **

Marisol is painting on a piece of canvas that has an area of 180 square inches. The length of the Painting is 1 1/4 times the width. What are the dimensions of the painting
*Friday, March 7, 2014 at 4:54pm*

**Geometry**

that isn't correct
*Friday, March 7, 2014 at 2:31pm*

**Pre-Algebra**

http://www.ck12.org/tebook/Foundation-and-Leadership-Public-Schools,-College-Access-Reader:-Geometry---Lesson-Plans-and-Exams/r1/section/8.0/
*Friday, March 7, 2014 at 11:15am*

**Geometry**

90^2 + 90^2 = 16,200^2 Square root of 16,200 = 127.3 feet
*Thursday, March 6, 2014 at 9:22pm*

**Geometry **

In baseball, the length of the path between each pair of consecutive bases is 90 feet. The paths form right angles. How far does the ball need to travel if it is thrown from home plate directly to second base? A. 90 feet B. 127.3 feet C. 135.7 feet D. 180 feet
*Thursday, March 6, 2014 at 9:19pm*

**geometry**

A 7-foot ladder is leaned against a building in such a way that the bottom of the ladder is 4 feet from the base of the wall. Find the angle formed between the ladder and the ground.
*Thursday, March 6, 2014 at 8:32pm*

**geometry**

You eat a new kind of fruit and suffer from hives for the first time in your life. A week later, you try the fruit and the hives recur. A month later, you have a similar experience. Conclusion:
*Thursday, March 6, 2014 at 8:11pm*

**geometry**

A regular pentagonal pyramid has a side length of 4 mm, an apothem that measures 3 mm, and a height of 4.1 mm. What is the volume of the pyramid?
*Thursday, March 6, 2014 at 6:13pm*

**Geometry**

That's what I get.
*Thursday, March 6, 2014 at 4:30pm*

**Geometry**

I believe I got the answer. Is it J?
*Thursday, March 6, 2014 at 2:14pm*

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