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April 23, 2014

Homework Help: Math: Geometry

Recent Homework Questions About Geometry

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math help!!!
http://www.math.com/tables/geometry/surf​areas.htm
Tuesday, December 10, 2013 at 9:19pm

math GR.8!!!
http://www.math.com/tables/geometry/surf​areas.htm
Tuesday, December 10, 2013 at 9:18pm

geometry
mrs. sally needed to build a triangular platform in the shape of an isosceles right triangle. the legs of the triangle are 6"long how long was the base side of the triangular platform? she also made well panels for the show that were 4" wide. how many wall panels ...
Tuesday, December 10, 2013 at 8:35pm

Geometry
naturally, if the midpoints are joined, the new sides are 1/2 as long as the original sides.
Tuesday, December 10, 2013 at 8:15pm

Geometry
An equilateral triangle has side lengths of 10. If the consecutive midpoints of the triangle are joined, then find the perimeter of the new triangle that is formed
Tuesday, December 10, 2013 at 6:06pm

Geometry
A cube would have the least surface area. How well would a cube fit on our shelves?
Tuesday, December 10, 2013 at 4:30pm

GEOMETRY CIRCLES
#2 Notice the centre of the inscribed circle must lie on the bisectors of the angles. We have an isosceles triangle, with sides 10,10 and 12 If we place the triangle on the x-y grid, we can have the base from (-6,0) to (6,0) and the third vertex on the y-axis. The y-axis ...
Tuesday, December 10, 2013 at 10:27am

GEOMETRY CIRCLES
1. Make a reasonable sketch. draw radii to A and B Triangle ABO is isosceles with sides 52 , 52 , and 96 By the cosine law we can find cosA 52^2 = 52^2 + 96^2 - 2(96)(52)cosA cosA = 96^2/(2*52*96) = 12/13 In triangle AMO MO^2 = 33^2 + 52^2 - 2(33)(52)cosA = 1089 + 2704 - 3432(...
Tuesday, December 10, 2013 at 9:58am

GEOMETRY CIRCLES
1. Ab is a chord of a circle with center o and radius 52 cm . point m divides the chord ab such that am = 63 cm and mb=33 cm find om 2. A circle is inscribed in a triangle whose sides are 10, 10 and 12 units . a second smaller circle is inscribed tangent to the first circle ...
Tuesday, December 10, 2013 at 9:45am

Geometry
volume = w * h * l surface area = 2wh + 2lh + 2wl So find something with dimensions that multiply up to the same number but the surface area is different, for example if w = 1 h = 2 l = 8 compared with w= 1 h = 4 l = 4 It would give different surface areas 4 + 32 + 16 8 + 8 + 32
Tuesday, December 10, 2013 at 9:42am

Geometry
I need to do an assignment where I find two cereal boxes that have the same volume but differ in surface area? Can someone please tell me when I'm looking at the boxes what I need to be looking at to compare these two things please? Thank you!
Tuesday, December 10, 2013 at 9:34am

Geometry about the circles
1. Ab is a chord of a circle with center o and radius 52 cm . point m divides the chord ab such that am = 63 cm and mb=33 cm find om 2. A circle is inscribed in a triangle whose sides are 10, 10 and 12 units . a second smaller circle is inscribed tangent to the first circle ...
Tuesday, December 10, 2013 at 5:14am

Geometry
One is not true. Which two statements are true?
Monday, December 9, 2013 at 10:02pm

Geometry
Quadrilateral RUBY is a rectangle. Which of the following statements MUST be true? Check all that apply: [] All four of the sides of RUBY are equal. []All four of the angles of RUBY are equal. []RUBY has two pairs of parallel opposite sides.
Monday, December 9, 2013 at 10:00pm

Geometry
2.5 * 4.6 * x = 172.5 x = 15 surface area = 2 * wh + 2*wl + 2*hl 2.5 * 4.6 * 2 + 2*2.5 * 15 + 2*4.6*15 =?
Monday, December 9, 2013 at 5:00pm

Geometry
Find the missing numbers for the dimensions and measures of a rectangular prism... Length ? Width 2.5 m Height 4.6 m Surface Area ? Volume 172.5 m to the third power Please answer the one's with a ?. Thank you.
Monday, December 9, 2013 at 3:11pm

Geometry
we know that w*h*5 = 60 2*5*w + 2*5*h + 2*w*h = 94 since w = 12/h, that gives 10(12/h) + 10h + 2(12/h)(h) = 94 120 + 10h^2 + 24h = 94h 10h^2 - 70h + 120 = 0 h^2-7h+12=0 (h-3)(h-4) = 0 h is 3 or 4, so w is 4 or 3 The prism is 3x4x5
Monday, December 9, 2013 at 2:41pm

Geometry
I need an example of two cereal boxes that have the same volume but different surface area. I need the brand and box sizes. Then I need to pick one of the cereal boxes and redesign it so that it has the same volume but less surface area. Why do you think most products are not ...
Monday, December 9, 2013 at 2:16pm

Geometry
Find the missing numbers for the dimensions and measures of a rectangular prism... Length 5 m Width ? Height ? Surface Area 94 m to the second power Volume 60 m to the third power Please answer the one's with a ?. Thank you.
Monday, December 9, 2013 at 1:16pm

help me pls geometry
A=s^2
Monday, December 9, 2013 at 12:21pm

Geometry - eh?
things are ambiguous. what does "on the left" of line AB mean? Is AB basically horizontal, and D in on AB toward the left? Or is AB basically vertical and D is not on the line at all, but left of it? #1. how does a point contain B and C? #2. true, since 3 points ...
Monday, December 9, 2013 at 12:19pm

Geometry
Kelly drew four points A, B, C, and D in her notebook. A straight line joins points A and C. Another straight line joins A and B. A point D is located on the left of the line AB Kelly made the following statements about the points. Statement 1: There is at least one more point...
Monday, December 9, 2013 at 11:58am

Help me pls geometry
Since perimeter is a linear function of the sides and the two triangles are similar, the ratio of sides = the ratio of perimeters so P/168 = 25/60 P = 168(25/60) = 70
Monday, December 9, 2013 at 11:23am

Help me pls geometry
UVW~XYZ, UV= 15, UW=25, and XZ=60. If the perimeter of XYZ is 168, what is the perimeter of UVW?
Monday, December 9, 2013 at 11:14am

help me pls geometry
After drawing four squares, Chen completed this chart showing the length of the sides of each square and the area of each square. According to Chen’s chart, if A is the area and s is the length of a side, what can you conclude is the formula for the area of a square? Side...
Monday, December 9, 2013 at 7:54am

physics(URGENT!!!!!)
I am taking moments about the cg. The length of the rod is .15 so half of it is .075 ========================== Harder way --------------------------- Force up from floor = Fz Force down from gravity = m g = .1*9.81 = .981 Newtons so .981 - Fz = .1 az where az is acceleration ...
Monday, December 9, 2013 at 7:50am

Geometry about the circles
1. Ab is a chord of a circle with center o and radius 52 cm . point m divides the chord ab such that am = 63 cm and mb=33 cm find om 2. A circle is inscribed in a triangle whose sides are 10, 10 and 12 units . a second smaller circle is inscribed tangent to the first circle ...
Monday, December 9, 2013 at 5:21am

help me pls geometry
#1. If the acute angle is equal, then all the angles are equal.
Monday, December 9, 2013 at 5:01am

geometry - incomplete
your description of the figure leaves a lot to be desired.
Monday, December 9, 2013 at 5:00am

help me pls geometry
Which tirangles must be similar 1. Two right triangles with a congruent acute angle 2. Two obtuse angles 3 Two isosceles triangles with congruent bases 4. Two scalene triangles with a congruent angle
Monday, December 9, 2013 at 1:48am

help me pls geometry
If ab=8, BC=14, and df=33 what is ef?
Monday, December 9, 2013 at 1:44am

GEOMETRY CIRCLES PLEASE
1. Make a sketch by placing the triangle on the x-y gird so that the altitude falls along the y-axis with (0,12) the top of the triangle and (0,) the middle of the base. Look at the righ-angled triangle in the first quadrant. You know the hypotenuse is 13 and the height is 12...
Sunday, December 8, 2013 at 11:44am

GEOMETRY CIRCLES PLEASE
HELP ME PLEASE. 1.An isosceles triangle with each leg measuring 13 cm is inscribed in a circle . if the altitude to the base is 12 cm find the radius of the circle 2. Circles a and b are tangent at point c. p is on circle a and q is on circle b such that pq is tangent to both...
Sunday, December 8, 2013 at 7:48am

GEOMETRY CIRCLE
1.An isosceles triangle with each leg measuring 13 cm is inscribed in a circle . if the altitude to the base is 12 cm find the radius of the circle 2. Circles a and b are tangent at point c. p is on circle a and q is on circle b such that pq is tangent to both circles. Given ...
Sunday, December 8, 2013 at 5:18am

Geometry
A solid
Saturday, December 7, 2013 at 9:09pm

Classical Mechanics Physics - Urgent help please
m = 0.1 Kg L = .15 m moment of inertia of ruler about center = (1/12) m L^2 = 1.88*10^-4 Kg m^2 ------------------------------ Method 1 decrease in potential energy = increase in kinetic energy Height of cg = .075 cos T height of cg at start = .075 meters height of cg at 30 ...
Saturday, December 7, 2013 at 6:54pm

Trigonometry/Geometry - Inequalities
Actually I solved it, but thanks :P
Saturday, December 7, 2013 at 6:11pm

Trigonometry/Geometry - Inequalities
Let a, b, and c be positive real numbers. Prove that sqrt(a^2 - ab + b^2) + sqrt(a^2 - ac + c^2) is greater or equal to sqrt(b^2 + bc + c^2). Under what conditions does equality occur? That is, for what values of a, b, and c are the two sides equal? This looks like a geometry...
Saturday, December 7, 2013 at 4:58pm

GEOMETRY CIRCLES PLEASE
1.An isosceles triangle with each leg measuring 13 cm is inscribed in a circle . if the altitude to the base is 12 cm find the radius of the circle 2. Circles a and b are tangent at point c. p is on circle a and q is on circle b such that pq is tangent to both circles. Given ...
Saturday, December 7, 2013 at 11:26am

Geometry
As = 2W*h + 2L*W + 2L*h = 214 m^2. 70 + 14L + 10L = 214 24L = 144 L = 6 m. V = L*W*h = 6 * 7 * 5 = 210 m^3.
Friday, December 6, 2013 at 8:45pm

Trigonometry - Geometry - side lengths
ohhhhh that makes sense i should have thought of that thanks!
Friday, December 6, 2013 at 5:16pm

Trigonometry - Geometry - side lengths
joint BD, and use the cosine law twice, once for each triangle we know AB = DC = 180 let angle A be Ø let AD = a and BC = b BD^2 = a^2 + 180^2 - 2(180)a cosØ BD^2 = b^2 + 180^2 - 2(180)bcosØ a^2 + 180^2 - 360a cosØ = b^2 + 180^2 - 360b cosØ a...
Friday, December 6, 2013 at 4:45pm

Trigonometry - Geometry - side lengths
In convex quadrilateral ABCD, angle A is congruent to angle C, AB=CD=180, and AD is not equal to BC. The perimeter of ABCD is 640. Find cos A. Hmm...I drew the diagram, and labeled some things, I drew an altitude from D to AB and did some other things, but no success was ...
Friday, December 6, 2013 at 4:13pm

Geometry
Find the missing numbers for the dimensions and measures of a rectangular prism... Length ? Width 7 m Height 5 m Surface Area 214 m to the second power Volume ? Please answer the one's with a ?. Thank you.
Friday, December 6, 2013 at 1:09pm

Geometry
SAS
Friday, December 6, 2013 at 12:58pm

Trig-Weird Geometry Problem
Thanks steve!
Friday, December 6, 2013 at 11:14am

Geometry
If x is the midpoint of line vy and wz and the reason is given then wx=xz and vx=xy then angle wxv = angle yzx to get the triangle vwx congruent to triangle yzx then what would be the reasons after given to make the triangle congruent
Friday, December 6, 2013 at 8:20am

Geometry
If x is the midpoint of line vy and wz And the prove is triangle vwx is congruent triangle yzx can you help me solve this using two column prove
Thursday, December 5, 2013 at 3:46pm

Geometry
(40*12*30*12*20*12)/(200000*(4*3*4)) = 4.32 so, yes, the warehouse is plenty big enough. Or, considering that 1 ft^3 holds 36 boxes, it requires only 5555.5 ft^3 for the whole batch, and the room is 24,000 ft^3, there's plenty of room.
Thursday, December 5, 2013 at 2:13pm

Geometry
Let's say a company is manufacturing juice boxes that are rectangular prisms with dimensions 4 inches by 3 inches by 4 inches. The company has a warehouse whose dimensions are 40 feet by 30 feet by 20 feet. If the company makes 200,000 juice boxes, will it be able to store...
Thursday, December 5, 2013 at 1:55pm

Geometry
if the squares are of size x, then the volume is v = x(20-2x)^2 = 4x(10-x)^2 Without benefit of calculus, you still know the general shape of the curve. Since we want integer values, just start checking. x v 1 324 2 512 3 588 4 576 Now v is decreasing, so keeping all values ...
Thursday, December 5, 2013 at 1:48pm

Geometry
Imagine a piece of square paper that measures 20 by 20 cm. You can make a box (with no lid) by cutting a square of the same size from each corner and folding up what's left to make a box. Keeping the lengths of each sides integers, what is the maximum volume box that can ...
Thursday, December 5, 2013 at 1:13pm

Trig-Weird Geometry Problem
You will find a nice discussion at http://answers.tutorvista.com/1101359/tr​igonometry-application-rule.html showing that if A+B+C=180, tan(A-B)+tan(B-C)+tan(C-A) = tan(A-B)*tan(B-C)*tan(C-A) Given that, one of the factors must be zero. So, A=B or B=C or A=C. That is, ...
Thursday, December 5, 2013 at 12:44pm

Trig-Weird Geometry Problem
Determine all triangles ABC for which tan(A-B)+tan(B-C)+tan(C-A)=0. There's a hint: "Can you relate A-B to B-C and C-A?" Should I apply the tangent difference formula (tan(x-y))? Help would be appreciated, thanks.
Thursday, December 5, 2013 at 11:02am

Geometry
1. If ΔRST symbol ΔNPQ, then RT line is congruent to _____. (1 point) line NP line NQ line PQ line QP 2. Given RST NPQ, RT = 7x – 5, NQ = 5x + 11, find the length of RT and of NQ. (1 point) 8 51 40 56 3. Which of the following statements is true about the ...
Thursday, December 5, 2013 at 1:42am

Geometry
with what tools? Compass? https://www.youtube.com/watch?v=ed7eEUDA​vnU
Wednesday, December 4, 2013 at 8:25pm

Geometry
of a right triangle
Wednesday, December 4, 2013 at 8:11pm

Geometry
With a compass, or a protractor. What do you mean perpendicular bisector of a right angle? That makes no sense.
Wednesday, December 4, 2013 at 8:09pm

Geometry
How to solve for perpendicular bisectors of right triangle. RST meet at point D. Find DR
Wednesday, December 4, 2013 at 8:05pm

Geometry/Trigonometry
Wow thanks a lot that helped!
Wednesday, December 4, 2013 at 5:20pm

Geometry/Trigonometry
Both circles are tangent to the x-axis, at (2,0) and (8,0). The line joining their centers is inclined at an angle θ such that tanθ = (9-1)/(8-2) = 4/3 So, the two tangent lines meet at an angle 2θ. Thus, our slope m of the other line is tan2θ = (8/3)/(1-16...
Wednesday, December 4, 2013 at 3:25pm

Geometry - eh?
I think there's something missing here.
Wednesday, December 4, 2013 at 2:35pm

Geometry
A softball player asked her father to make her a home plate for a softball game. According to her encyclopedia, an official plate is made from a square by making two 12-inch diagonal cuts upward from both bottom corners. What is the length of the side of the original square?
Wednesday, December 4, 2013 at 1:21pm

Geometry/Trigonometry
Circles with centers (2,1) and (8,9) have radii 1 and 9, respectively. The equation of a common external tangent to the circles can be written in the form y=mx+b with m < 0. What is b? I drew the diagram and the tangents but to no avail. I cannot seem to find the points ...
Wednesday, December 4, 2013 at 12:18pm

Geometry
measured along the diagonals, so diagonal is twice as big
Wednesday, December 4, 2013 at 11:35am

Geometry
Use Heron's formula. Let a, b and c be the sides of a triangle. Let s = a + b + c Therefore the area of triangle can be calculated using this formula: A = sqrt[ (s)(s-a)(s-b)(s-c) ] It should be a little easy using this formula, so I guess you can do it on your own. :) ...
Wednesday, December 4, 2013 at 11:34am

Geometry
I will do the 1st one you do the 2nd method 1. check to see if it is right -angled, then it would be real easy is 3.5^ + 4.8^2 = 6.1^2 ? , NO --- so forget that method method 2: find the angle opposite the smallest side using the cosine law 3.5^2 = 4.8^2 + 6.1^2 - 2(4.8)(6.1)...
Wednesday, December 4, 2013 at 11:34am

Geometry
How is the size of a TV measured? If we are comparing a 15-inch TV and a 30-inch TV, what is twice as big about the bigger TV?
Wednesday, December 4, 2013 at 10:23am

Geometry
Find the area of the triangles in square centimeters: a. 3.5, 4.8, 6.1 b. 10.2, 4.4, 7.1
Wednesday, December 4, 2013 at 10:10am

GEOMETRY CIRCLES PLEASE
This is just too easy. Remember that both tangents to the same circle from an exterior point are equal. so AB = AC but AC is also tangent to the small circle so AC = AD but AD is also a tangent to the circle at the right so AD = AE Since the are all equal , and AB = 15 each ...
Wednesday, December 4, 2013 at 8:51am

GEOMETRY CIRCLES PLEASE
The diagram shows tangent circles and lines. if AB=15 CM find AC, AD and AE . Help me reiny and other tutors please<3 thank you this is the figure img19.(imageshack.)us/img19/7143/0eua.pn​g just remove the open and close parentheses thank you
Wednesday, December 4, 2013 at 8:36am

MATH
math that comes before calculus, usually 2nd year algebra and trigonometry. Geometry comes into play as well.
Wednesday, December 4, 2013 at 6:17am

Trigonometry/Geometry
Oh thank you very much sir!!
Tuesday, December 3, 2013 at 10:31pm

Trigonometry/Geometry
Start by drawing a reasonably accurate rhombus on a piece of paper. Remember a rhombus has 4 equal sides and opposite angles equal, ( A square is a special kind of rhombus, so don't use a square) cut your rhombus out with scissors. Surprisingly, you will be able to form a ...
Tuesday, December 3, 2013 at 10:03pm

Trigonometry/Geometry
Rhombus ABCD, with side length 6, is rolled to form a cylinder of volume 6 by taping AB to DC. What is sin(angle ABC)? I don't know how to begin. Help?
Tuesday, December 3, 2013 at 9:18pm

geometry
I get 9
Tuesday, December 3, 2013 at 8:33pm

geometry
i35
Tuesday, December 3, 2013 at 8:08pm

Geometry
See previous post: Mon,12-2-13,7:39 AM.
Tuesday, December 3, 2013 at 8:06pm

Geometry
See previous post:Mon,12-2-13,7:39 AM.
Tuesday, December 3, 2013 at 8:04pm

Geometry
The diagonals form 2 30o-60o rt. triangles. h = 24*sin30 = 12 In. W = 24*cos30 = 20.8 In. P = 2*(W+h) = 2*(20.8+12) = 65.6 In.
Tuesday, December 3, 2013 at 7:59pm

geometry
Height of the kite from the hand =35-3 = 32 ft Distance of the kite from hand = x feet using the formula sin(32) =32/x x = 32/sin(32) =60.3865572736188208=60.4 .............Ans(c)
Tuesday, December 3, 2013 at 6:53pm

geometry
Kendra is flying a kite 35 feet in the air. The angle of depression from the kite to where Kendra holds the string is 32 degrees. If Kendra holds the string 3 feet off the ground, what is the distance from her hands to the kite? Round your answer to the nearest tenth.
Tuesday, December 3, 2013 at 6:35pm

geometry
A diameter of a circle is perpendicular to a chord whose length is 12 inches. If the length of the shorter segment of the diameter is 4 inches, what is the length of the longer segment of the diameter?
Tuesday, December 3, 2013 at 5:04pm

geometry
A diameter of a circle is perpendicular to a chord whose length is 12 inches. If the length of the shorter segment of the diameter is 4 inches, what is the length of the longer segment of the diameter?
Tuesday, December 3, 2013 at 5:00pm

geometry
A diameter of a circle is perpendicular to a chord whose length is 12 inches. If the length of the shorter segment of the diameter is 4 inches, what is the length of the longer segment of the diameter?
Tuesday, December 3, 2013 at 4:56pm

geometry
mmmhhhh http://www.jiskha.com/display.cgi?id=138​6103063
Tuesday, December 3, 2013 at 4:32pm

geometry
let the outer segment of the 2nd secant be x then the inner segment is 28-x 8/6 = x/(28-x) 6x = 224 - 8x 14x = 224 x = 16
Tuesday, December 3, 2013 at 4:30pm

geometry
8*6 = 28*x
Tuesday, December 3, 2013 at 3:53pm

geometry
Two secant segments are drawn to a circle from a point outside the circle. The external segment of the first secant segment is 8 centimeters and its internal segment is 6 centimeters. If the entire length of the second secant segment is 28 centimeters, what is the length of ...
Tuesday, December 3, 2013 at 3:40pm

geometry
Two secant segments are drawn to a circle from a point outside the circle. The external segment of the first secant segment is 8 centimeters and its internal segment is 6 centimeters. If the entire length of the second secant segment is 28 centimeters, what is the length of ...
Tuesday, December 3, 2013 at 3:37pm

geometry
52
Tuesday, December 3, 2013 at 1:45pm

Geometry
assuming a heartbeat of 60/min, that's 86400 beats/day. 86400*0.06 = ? since the volume is given in ml units, but we're dealing with thousands of beats, I'd say 1 liter would be appropriate for the answer. as for gallons, just look up the conversion factor and ...
Tuesday, December 3, 2013 at 12:49pm

Geometry
The average human heart pumps about 60 milliliters of blood for each beat. a. About how many liters of blood does your heart pump each day? b. Do you think a reasonable degree of precision for this question would be to report the answer to the nearest 100 liters, 10 liters, 1 ...
Tuesday, December 3, 2013 at 12:44pm

Geometry
2.54 cm = 1 inch (official definition of inch since 1959) 1 cm = 1/2.54 inches 1 m = 100/2.54 inches 1 km = 1000(100/2.54) inches = 100000/(2.54*12*5280) miles = .62137 miles which is the same as your other definition correct to 2 decimals.
Tuesday, December 3, 2013 at 10:36am

Geometry
To determine the relationship between miles and kilometers, if we use the conversion 39.37 inches= 1 meter, we find that 1 kilometer is approximately equal to 0.62 mile. What if we use the conversion 2.54 centimeters = 1 inch? How far apart are the answers (1 kilometer = x ...
Tuesday, December 3, 2013 at 10:17am

geometry
6 * 36 = ?
Monday, December 2, 2013 at 9:43pm

geometry
Deshawn built a model train car. The length of the model train car is 6 in. The scale Deshawn used to build the model train car is 1:36. What is the actual length of the train car in FEET?
Monday, December 2, 2013 at 9:34pm

Geometry
Since the semi-diagonals form an isosceles triangle with the sides of the rectangle, the diagonals make an angle of 60° with the short side, and 30° with the long side. length = 24cos30° height = 24sin30° p = 2(length+width)
Monday, December 2, 2013 at 5:49pm

Geometry
make a sketch drawing both diagonals Look at one of the triangles containing the 60° angle. Since the diagonals bisect each other, each side containing the 60° angle must be 12 inches long. The triangle must be isosceles, so each of the other angles is also 60°, ...
Monday, December 2, 2013 at 8:55am

Geometry
The diagonal of a rectangle are 24 inches long intersect at an angle of 60°.Find the perimeter of the rectangle.Pls help me.
Monday, December 2, 2013 at 8:20am

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