Questions on Geometry: Area and Surface Area answered by real tutors!

Tutors Answer Your Questions about Surface-area (FREE)

Question 342102: If two sides of a square field were increased by five feet the area of the field would increase by 245ft2. Find the area of the original square.
Click here to see answer by checkley77(12844)

Question 342317: A triangle is placed on a coordinate grid on which each unit is a centimeter. It has vertices at points (2,-8), (2,5),and (-4,5). Find its area.
Click here to see answer by Fombitz(32388)

Question 342777: Find the area of the triangle formed by the points A = (-8, 1), B = (7, 1) and C = (2, 10)
Click here to see answer by Fombitz(32388)

Question 343369: I need to know how to calculate the surface area of a circular cone that has a radius of 3 and height of 7. I have tried it many times and I get stuck calculating the square root portion can you help me?

Click here to see answer by stanbon(75887)

Question 344053: A picture frame measures 28 cm by 32 cm and is of uniform width. What is the width of the frame if 192 cm^2 of the picture shows?
Click here to see answer by checkley77(12844)

Question 344429: can you show me how to work these out please:
1) The formula S=4 π r2 gives the surface area of a sphere of radius r. Jupiter�s radius is 71 492 000 metres. Use the formula t0 estimate the surface area of Jupiter.
2) Atomic particles: Atoms are made up of protons, neutrons and electrons. The mass of a proton is 0.000 000 000 000 000 000 000 000 001 673kg.
This is 1836 times as heavy as an electron.
What is the mass of an electron?
How many protons are needed to make a mass of 1kg?

3) The wave length of red light is 7x10-7 m and that of violet light is 4x10-7
Metres. What is the difference between these wavelengths
Click here to see answer by Alan3354(69443)

Question 344349: the ratio of the diameter of a large circle to the diameter of a small circle is 3/2 .what is the ratio of the circumference of the large circle to the circumference of the smaler circle.
Click here to see answer by ankor@dixie-net.com(22740)

Question 344552: a 14 by 18 foot rectangular floor will be covered by square tiles that measure 2 feet on each side if the tiles are not cut how many will be need to cover the floor?
Click here to see answer by JBarnum(2146)

Question 345175: how do u solve this
base: 3 ft
height:2 in.

Click here to see answer by Fombitz(32388)

Question 345518: if a rectangle measures 3m by 2m calculate its area and include the unit in ur calculation

Click here to see answer by Fombitz(32388)

Question 345544: what is the area of a square with perimeter 10n units?
Click here to see answer by bella18(6)

Question 345544: what is the area of a square with perimeter 10n units?
Click here to see answer by Fombitz(32388)

Question 345589: " A cuboid of volume 1125cm^3 has length equal to three times the breadth.
(a) Show that the surface area of the cuboid can be expressed as
6x^2 + (3000/x) "
I am struggling with this one. So far, I have:
A = l x b = x.3x.2 = 6x^2
taking h as height, x.h.2 + 3x.h.2 = 8xh
... not sure where to go from here, help appreciated! Thanks.
Click here to see answer by ewatrrr(24785)

Question 345647: what is the volume of a cube with the edge length of 25 inches?
Click here to see answer by ewatrrr(24785)

Question 345646: what is the volume of a cube with the edge length of 80 centimeters?
Click here to see answer by ewatrrr(24785)

Question 345641: what is the volume of a cube with the edge length of 11 ft?
Click here to see answer by ewatrrr(24785)

Question 346258: what is the surface area in square centimeters of this triangular prism with the given dimensions?
measures are:
h=3cm
w=5cm
l=10cm
include full process please
Click here to see answer by solver91311(24713)

Question 346549: Finding the area of a rectangle when the length is v+3 and the width is 5, the answer is 5v + 15. I understand how I arrived at 15 but I don't understand the 5v part.
Thank you
Click here to see answer by mananth(16946)

Question 346666: Determine how many square inches of surface area would be found on a cylinder 20 inches high wwith a diameter of 8 inches
Click here to see answer by solver91311(24713)

Question 346768: A rectangle that has an area of 357 square inches is 17 inches wide. How long is the rectangle?
Click here to see answer by rfer(16322)

Question 346981: An open rectangular box (no top) with volume 7 cubic meters has a square base. Express the surface area of the box as a function of the length of one of the sides.
Click here to see answer by mananth(16946)

Question 347323: how many 2in by 2in squares will fit inside a 3in by 5in rectangle without overlapping
Click here to see answer by edjones(8007)

Question 347543: a sealed rectangular box measuring 6 x 8 x 18 contains 864 sugar cubes, each measuring 1 x 1 x 1. How many of the sugar cubes are touching the box?
Click here to see answer by scott8148(6628)

Question 348160: How do i solve the equation s= 2(lw + hw + hl) for h?
Click here to see answer by nerdybill(7384)

Question 348295: A sports center has 12 gates, five are on the west side and seven are on the east side. In how many different ways can a person enter by a west gate and leave by an east gate?
Click here to see answer by solver91311(24713)

Question 348614: A cube has one face that is equal to the total surface area of another cube. Find the ratio of their volumes.
Click here to see answer by nyc_function(2741)

Question 349561: the length of a rectangle is 7 more than the width. the area is 330 square centimeters. find the length and the width of the rectangle.
Click here to see answer by mananth(16946)

Question 350718: Hello. i'm very confused about this problem. I just can't seem to understand it. here it is:
Find the area of a octagon if the perimeter is 42
thank you very much who ever answers it you have been a great help.
Click here to see answer by Alan3354(69443)

Question 350740: A rectangular piece of land is 1300 yds � 1500 yds. What is the area in acres?
Click here to see answer by mananth(16946)

Question 351508: Hi, any help would be great! I really need this by tomorrow night! Thanks so much!
A rectangular field is 64 meters � 25 meters. You want to fence in a square field that has the same area as the rectangular field. How long are the sides of the square field?

Click here to see answer by mananth(16946)

Question 351509: A 15 feet ladder is leaning against a wall. The base of the ladder is 3 feet from the wall. How high above the ground is the top of the ladder?
Click here to see answer by mananth(16946)

Question 351682: I don't really know where to start with this, any help would be great! Thanks!
If each edge of a cube is increased by 30%, by what percent does the volume increase?
Click here to see answer by Fombitz(32388)

Question 351792: a circle of 50 flags surrounds the washington monument in dc. the diameter of the circle is about 238 feet. about how far apart are the flags if they are evenly spaced?
Click here to see answer by jim_thompson5910(35256)

Question 352216: if u tripple the base and double the height of a retangal how would the area change
: multi by 2 or 3 or 6 or 2/3
Click here to see answer by Fombitz(32388)

Question 352231: The length of one lege of a right triangle is 7" more than the length of the shorter leg. If the hypotenuse is 7" more that the longer leg, FIND the are of the triangle

Click here to see answer by Fombitz(32388)

Question 352304: the area of a room is meaured 12 ft by 15 ft. what is the correct answer in square yards?

Click here to see answer by nerdybill(7384)

Question 352304: the area of a room is meaured 12 ft by 15 ft. what is the correct answer in square yards?

Click here to see answer by rfer(16322)

Question 352376: a cube has a surface area of 108 square feet.What is the area of one face?
Click here to see answer by Edwin McCravy(20055)

Question 352506: You want to tile your kitchen floor. The floor measures 30 ft by 18 ft. How many tiles, each a square with side 1 1/2 ft, should you purchase for the job?
Click here to see answer by robertb(5830)

Question 352555: find the area of the square, that has a side square root 15 cm
Click here to see answer by Waveez(3)

Question 353087: WHAT IS THE SURFACE AREA OF THE CUBE WHOSE SIDE IS 3 CM.

Click here to see answer by mananth(16946)

Question 353087: WHAT IS THE SURFACE AREA OF THE CUBE WHOSE SIDE IS 3 CM.

Click here to see answer by vleith(2983)

Question 353132: a circular garden twenty feet in diameter is surrounded by a path three feet wide what is the area of the path?
Click here to see answer by ewatrrr(24785)

Question 353183: if an arc with length of 12 phi is 3/4 the circumference of a circle. what is the shortest distance between the end points of the arc?
Click here to see answer by Fombitz(32388)

Question 353433: what is the length of one side, square whose area is 81 cm
please tell me the formula for the answer
Click here to see answer by edjones(8007)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840