# Questions on Geometry: Geometric formulas answered by real tutors!

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 Geometric and Other Formulas Answers archive In Depth

 Question 97941: Hi there I have a curly trigonometry question that I simply do not understand as it is written in such a way as I have never seen before. Any assistance would be greatly appreciated. Thank you. It asks me to evaluate tan^2 2pie/3. Thank you so very much. Click here to see answer by stanbon(57387)

 Question 98440: hi.i dont get how to find the second midpoint with the given midpoint, here is my question....T(6,2) [[this is 1st endpoint]]M(2,0)[[this is midpoint]] ???what is the 2nd endpoint. Click here to see answer by edjones(7569)

 Question 98542: The relationship between corresponding angles is stated as a postulate, but the relationships between alternate interior angles, consecutive interior angles, and alternate exterior angles are stated as theorems. Explain the difference Click here to see answer by elima(1433)

 Question 98718: I would like to know how to get the angle, while I know three points in three dimensional space. Point A is (0,0,0), point B is (x,y,z), and point C (x', y',z'). I want to get the angle at A. I need the equation to get the angle. Thank you very much... Click here to see answer by scott8148(6628)

 Question 99172: Joe has a total of \$200 in his two pockets. He takes one-fourth of the money in his left pocket and puts it in his right pocket. He then takes \$20 from his left pocket and puts it in his right pocket. If he now has an equal amount of money in each pocket, then how much money did he originally have in his left pocket? Click here to see answer by ankor@dixie-net.com(15660)

 Question 99209: The sum of seven consecutive integers is 980. How many of them are prime? Name the prime numbers. Click here to see answer by checkley71(8403)
 Question 99209: The sum of seven consecutive integers is 980. How many of them are prime? Name the prime numbers. Click here to see answer by Adam(64)

 Question 100008: How much of a liquid with a 30% alchohol content and how much of a liquid with a 100% alcohol content should be added to end up with 42 milliiters of with a 50% alcohol content? Click here to see answer by Nate(3500)

 Question 100366: Diana has a large family. When consideriing their birthdays in terms of calendar dates (1st through 31st), she noticed that every prime day had at least one person's birthday. This was also true for all perfect squares, cubes, and multiples of 3, 5, 7, and 11. What day(s) are not represented by anyone in her family? Click here to see answer by scott8148(6628)

 Question 101855: i need to know what the diagonal measure is of a 16 foot square to find out whaqt the center point would be to build a shed Click here to see answer by stanbon(57387)

 Question 102235: what is the perimeter of a square if the length of the diagonal = 5? Click here to see answer by stanbon(57387)

 Question 103180: circumference of a circle solve for r: c=2*3.14r Click here to see answer by stanbon(57387)

 Question 104400: Hello, The geometric mean of a number and 3 is 9. I need help finding the number using the formula g=(sqrt)ab. Thank you Click here to see answer by stanbon(57387)

 Question 105605: [1]find the equation of a straight line with slope -1/3 which passes through a point[-2,5] [2]state the gradient and y intercept of these lines [a]3x-4y-12=0 [b]4x+5y=10????????????? eddy Click here to see answer by elima(1433)

 Question 106382: I dont no if this is a Geometric Formula but this is my first time taking geomatry and it's all really new to me. So i hope someone might help. First and formost i don't understand what it means when they ask me to give an example of of the use of parallel lines in sports. And i also don't understand planes, and what they mean when they ask, " is A B and C coplaner? I dont no if someone can help but if you can get at me please. thankx. Click here to see answer by stanbon(57387)

 Question 106922: A sheet of paper is yellow on the top side and blue on the bottom side. The lower-right corner is folded to the left side of the paper so that the resulting figure is a yellow rectangle above a blue triangle. The width of the paper is 10 cm, and equal areas of blue and yellow appear after the folding. What is the area of one side of the paper. Click here to see answer by scott8148(6628)

 Question 108186: Points A, B, C, and D are arranged in order on a line so that AB = 3BC and BC = 2CD. What fraction of AD is BD? Click here to see answer by edjones(7569)

 Question 108317: Find the equation, in slope-interceipt form, of the line that passes through the points (5,6) and (-7,3). Click here to see answer by MathLover1(6638)

 Question 108188: Points A, B, C, and D are arranged in order on a line so that AB = 3BC and BC = 2CD. What fraction of AD is BD? Click here to see answer by ankor@dixie-net.com(15660)

 Question 109071: the area of a square is 324 yd^2. what is the lenght of each side? s^2=324 not sure where to go now? Click here to see answer by ankor@dixie-net.com(15660)

 Question 109700: the formula for finding the distance between two end points that are set up like this A(6,2) B(0,-3) Click here to see answer by jim_thompson5910(28598)

 Question 109989: y = 3x y = 3x + 10 i need to find the distance between the parallel lines Click here to see answer by scott8148(6628)

 Question 109993: With (p,q) and (r,s) how do you find the length of the segment with those end points??????? Click here to see answer by scott8148(6628)

 Question 110034: Suppose that a gallon of wall paint costs \$40 and covers 150 sq ft. Three rooms of the house measure 10 ft by 12 ft, 12 ft by 14 ft and 12 ft by 16 ft. The ceiling is 11 ft high. Use this information and equations and formulass to answer the first 4 questions. How many gallons of paint are needed to cover the wall of these rooms if you make no allowance for the doors and windows? Just the walls not the ceilings? Round up to next gallon since can't buy part of a gallon. Click here to see answer by josmiceli(9697)

 Question 110737: I want to put a green carpet in a room which is 10ft by 12ft a plum carpet in a room that is 12ft by 14ft and a blue carpet in a room that is 12ft by 16ft. Calculate the amout of each type of carpeting i would need. Suppose the carpet is \$24 per sq yard. Calculate the cost of carpeting the rooms. Always round up to the next number. Click here to see answer by josmiceli(9697)

 Question 110736: Suppose you wish to paint the walls of the 10 ft by 12ft room green, the walls of the 12ft by 14 ft room off white and the walls of the 12 ft by 16 ft room blue. how much green, off white and blue paint do you need? Calculate the cost of painting the three rooms. Gallon paint cost \$40 and covers 150 sq ft Click here to see answer by josmiceli(9697)

 Question 111701: The Louisiana Superdome covers an area of 363,000 square feet. Find the diameter of this round arena to the nearest foot. Click here to see answer by checkley71(8403)

 Question 112250: The perimeter of a rectangle is 24 cm. Find the value of x. length is 3x cm. and width is 3 cm. what is the answer please. 3 cm fffff fffff fffff 3x cm fffff Click here to see answer by jim_thompson5910(28598)

 Question 112219: If planes a and b are distinct planes having points x,y,and z in common, what conclusion can you make about points x,y, and z? Why? Click here to see answer by scott8148(6628)

 Question 112457: C=2(pie)r for r..i dont understand how to solve this. i would like some help exlaining how to do it!!! there's no way to put a pie symbol on here!!! Also there is a problem on here that you have to solve this, 6 days's : 3 weeks, and then it shows 6 - 3 and the answers turns out to be 2/7..HELP!!! Click here to see answer by Fombitz(13828)

 Question 112506: find the perimeter of the regular heptagon in feet if the area of the square is 56.25 sq. yards c=______________feet Click here to see answer by checkley71(8403)

 Question 112743: If PQ =21cm and QR= 5cm then what are the possible lengths for PR so that (line over)PQ, (line over)QR, and (line over)PR can form a triangle? Explain your reasoning. Click here to see answer by mathnard(10)

 Question 114642: goldi's pizza place is known throughout the city. the small pizza has a 6-inch radius and sells for \$9.75. the medium pizza sells for \$12.00 and has an 8-inch radius. the large pizza has a 20-inch radius and sells for \$16.50. what size has the most pizza edge per dollar?. and what is the circumfrence of that pizza? Click here to see answer by stanbon(57387)
 Question 114642: goldi's pizza place is known throughout the city. the small pizza has a 6-inch radius and sells for \$9.75. the medium pizza sells for \$12.00 and has an 8-inch radius. the large pizza has a 20-inch radius and sells for \$16.50. what size has the most pizza edge per dollar?. and what is the circumfrence of that pizza? Click here to see answer by checkley71(8403)