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

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Question 654623: Explain why the product of a nonzero rational number and an irrational number is irrational
Click here to see answer by solver91311(24713)

Question 654932: if the area of triangle TIN is 26cm squared and its base is 6 cm, find the height of the triangle.
Click here to see answer by checkley79(3341)

Question 655352: PLEASE HELP-
Whats the area of the shaded figure? Round your answer to the nearest tenth.
Can anyone show me step by step how to figure this out? 12.5cm is in the inside. 8.4 is at the bottom. THANKS!
http://i46.tinypic.com/2u8koes.png < picture of the problem with multiple choice answers
Click here to see answer by MathLover1(20849)

Question 655350: PLEASE HELP! The diameter of a circle is (x+2) units. Express the area of the square in the figure as a polynomial
it is a circle with a line going through the middle, and two arrows going opposite directions below that with x+2 in the center.
http://i49.tinypic.com/2w7pyjp.png < This is a picture for a visual
thanks.
Click here to see answer by MathLover1(20849)

Question 655387: PLEASE HELP! Write the perimeter of the figure as a polynomial
its a hexagon with b+1 on every side. and the 4 more b's in the middle..
http://i47.tinypic.com/2ag8cb6.jpg < picture of the problem
thank you!
Click here to see answer by jim_thompson5910(35256)

Question 655441: The surface area a sphere is 5025 mm squared what are the missing dimensions to the nearest tenth of square unit.
Click here to see answer by Alan3354(69443)

Question 655499: HELP, PLEASE! The diameter of the circle is (x+2) units. Express the area of the square in the figure as a polynomial.

http://i50.tinypic.com/2j2vt5l.png < theres a picture if you need to see a visual
THANK YOU!
Click here to see answer by Alan3354(69443)

Question 656232: PLEASE HELP! find the value of x

PICTURE OF PROBLEM & ANSWERS TO CHOOSE FROM>>> http://i48.tinypic.com/bezpl5.png
(a and d are incorrect)
explain how to solve this please
THANK YOU SO MUCH!
Click here to see answer by lynnlo(4176)

Question 656229: PLEASE HELP!!!!!!!!! THE TWO POLYGONS SHOWN ARE SIMILAR FIND THE VALUE OF X
10 x
-- = --
6 4 ??? i dont know how to figure this out. doing cross cancelling was incorrect. THANKS FOR YOUR HELP!

http://i48.tinypic.com/dynof9.png <<< picture of the problem & multiple choice answers
Click here to see answer by josmiceli(19441)

Question 656304: PLEASE HELP! The question is to find the value of x
HERE IS A PICTURE OF PROBLEM & ANSWERS TO CHOOSE FROM>>> http://i48.tinypic.com/bezpl5.png
(a and d are incorrect)
explain how to solve this please
THANK YOU SO MUCH!
Click here to see answer by Alan3354(69443)

Question 656333: if a room is 12 ft long and 15 wide what is the area of the room? and what is the perimeter?

12*15= 180 i think that is the area
I do not know how to find the perimeter
Click here to see answer by solver91311(24713)

Question 656774: if 3/5 of the a square is 135cm2 what is the area of the square?
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Question 656774: if 3/5 of the a square is 135cm2 what is the area of the square?
Click here to see answer by ewatrrr(24785)

Question 656773: if 3/5 or the a square is 135cm2 what is the area of the square?
Click here to see answer by solver91311(24713)

Question 656772: if 3/5 or the a square is 135cm2 whatnis the area of the square?
Click here to see answer by solver91311(24713)

Question 657672: You have a 6x6x6 cube. You paint each face of the cube. How many cubes are not painted? How many cubes have 3 painted faces? 2 faces? 1 painted face? Generalize your results for an n by n by n cube with n=2
Click here to see answer by Alan3354(69443)

Question 657717: The length and width of a rectangular swimming pool are each doubled, while the depth remains the same. Which is true?
a) it takes twice as much paint to paint the bottom
b) it takes twice as much paint to paint the four walls
c) it takes twice as much water to fill the pool
d) all of the above
e) none of the above
Click here to see answer by chriswen(106)

Question 657827: A sheet of wrapping paper is 20 inched by 30 inched. Is one sheet of paper enough to wrap a box that is 15 inches by 10 inched by 2 inches?
Click here to see answer by pv=nrt15rcks(23)

Question 658207: If the length of the sides of the cube is 2.1 feet, which is closest to the surface area of the box?

Click here to see answer by colliefan(242)

Question 658548: assuming the earth to be a sphere of radius 6370km how many square kms is area of land if 3/4th of the earth surface is covered by water
Click here to see answer by stanbon(75887)

Question 658567: Please help!!!!!
Find the surface area of the cylinder. Round to nearest tenth.
Picture of the problem > http://i49.tinypic.com/314pmae.png
thanks in advance!!
the answer is not 39.3in cubed
please explain how you came to that answer also, please.
Click here to see answer by kevwill(135)

Question 658566: PLEASE HELP!
and explain how you got the answer
A rectangular box has a surface area of 1020 square inches, a length of 6 inches, and a width of 9 inches. Find the height.
THE ANSWER IS NOT 30.4 INCHES.
Thank you!!!!!
Click here to see answer by kevwill(135)

Question 657737: The area of a circle divided by the square of its radius is a little more than 3. Is this statement true or false?
Click here to see answer by kevwill(135)

Question 658550: a cone in the form of the sphere as a diameter 42cm if stone weights 2grm per cc find the weight of the stone
Click here to see answer by kevwill(135)

Question 658547: PLEASE HELP!
and explain how you got the answer
A rectangular box has a surface area of 1020 square inches, a length of 6 inches, and a width of 9 inches. Find the height.
THE ANSWER IS NOT 30.4 INCHES.
Thank you!!!!!!!!!!!!!!!!
Click here to see answer by kevwill(135)

Question 658760: HELP PLEASE!!!!!
The volume of a rectangular pyramid is 160 ft3. Given that the length and width of the rectangular base are 12 ft and 4 ft, what is the height of the pyramid?
it is not 10ft
please explain how you got the answer as well.
THANK YOU!
Click here to see answer by MathLover1(20849)

Question 658916: the wall is 136 inches want to paint stripes on it ..cant figure out the size to make strips..cant find an even balance
Click here to see answer by Alan3354(69443)

Question 658938: Lucinda is bowling 3 games in tonight's league competition. The scores for her first 2 games are 148 and 161. If Lucinda wants the average (mean) of her 3 games to be 160, what score does she needs in her third game?
Click here to see answer by Alan3354(69443)

Question 659858: Find the area of the geometric figure. 7ft. 10ft. I know the answer is 35sq ft. Because I have a practice sheet. What I don't know is how was the figure 35sq ft. determined.
Click here to see answer by ewatrrr(24785)

Question 660600: jim is making a garden that measures 12 meters wide by 20 meters long. what is the area of the garden jim is making
Click here to see answer by math-vortex(648)

Question 661118: PLEASE HELP!!!!!!!!!!!!!!!!!!
The question is find the area of the figure. Round your answer to the nearest tenth.

picture of the problem >>> http://i46.tinypic.com/2nt9qux.png
the answer is NOT 322.2mm cubed.
THANK YOUU!!

Click here to see answer by ewatrrr(24785)

Question 661113: PLEASE HELP!!!
if the radius of a certain circle is tripled,with 8.2 cm then added, the result is the circumference of the circle. Find the radius of the circle. (Use 3.14 as pi) THANKS!

possible answers:
-.884 CM
-1.78 CM
-2.5 CM

Click here to see answer by ewatrrr(24785)

Question 661160: What is the area of the circle if the radius is SQRT 3?
a=(PI)r^2
Click here to see answer by swincher4391(1107)

Question 662145: how do you calculate the surface area of a right cylinder topped with a hemisphere, if the radius = 10m and the total height, from the cylinder base to the top of the hemisphere = 75m?

Click here to see answer by ewatrrr(24785)

Question 662239: for a regular dodecagon with side measure of 10cm and apothem of 18.67cm find the area and perimeter
Click here to see answer by Alan3354(69443)

Question 662248: The visual shows the net of an open cube. The area of the net is 45 square centimetres, what is the length of one side of the cube?
Click here to see answer by KMST(5328)

Question 662432: if l=14 cm and w=8 cm , how do you write an expression for the perimeter or a rectangle ?
how do you find the perimeter of the rectangle ?
write and expression for the area of the rectangle .
find the area of the rectangle
Click here to see answer by Alan3354(69443)

Question 662413: a cylindrical cone has base dia=14cm and height=24cm (if pie=22/7)
Find 1)the volume of cone?
2)srface area?
Click here to see answer by ewatrrr(24785)

Question 665897: a rectangle has an are of 16.if the length of the rectangle is doubled and the width remains the same, what is the area of the new rectangle?

Click here to see answer by Alan3354(69443)

Question 666142: The width of a rectangular painting is 2 inches less than the length. The area is 120 inches squared. Find the length and the width.
Click here to see answer by swincher4391(1107)

Question 667181: what is the perimeter of regular nonagon if one side measures 7 cm?

Click here to see answer by Edwin McCravy(20055)

Question 669144: The question is:
The measurements given are rounded to the nearest foot. ( width: 6 feet height: 10 feet). Use these measurements to find the approximate area of the trapezoid. Describe your method.
I have no idea how to do this otherwise i would've tried.
Click here to see answer by ankor@dixie-net.com(22740)

Question 669447: A hollow spherical shell has inner diameter 2 cm and outer diameter 4 cm.Determine the volume of the shell.
Click here to see answer by SATCHI76(2)

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