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April 16, 2014

Homework Help: Math: Geometry

Recent Homework Questions About Geometry

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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/squar​e-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/sq​uare.html http://www.mathsisfun.com/geometry/recta​ngle.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/pyram​ids.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/geom​etry/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/const​ruct-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-an​d-Leadership-Public-Schools,-College-Acc​ess-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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