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

Tutors Answer Your Questions about Surface-area (FREE)

Question 271443: Help me find the Area of a cirlce with a shaded spot. The outer ring of the circle is the shaded spot. From center of cirlce to outside ring of circle is 2.3 cm, from center to inside of shaded circle is 1.9cm.
Click here to see answer by stanbon(75887)

Question 273304: The surface area of a cube is 24 cm2. what is the new surface area of the cube if the length of each edge of the cube is tripled.
Click here to see answer by colliefan(242)

Question 273992: Two sides of a Rohmbus form a 60 degree angle. The lengths of each side is 8. What is the area?
Click here to see answer by edjones(8007)

Question 274213: I don't know how to do this.
Directions: The vertices of an irregular figure are given. Find the area of the figure.
T(-4,-2), U(-2,2), V(3,4), W(3,-2)

Click here to see answer by Alan3354(69443)

Question 274181: What is the volume of a rectangular pyramid length 8 cm width 10 mm height 3 dm.
Click here to see answer by fractalier(6550)

Question 274152: a 25ft ladder is placed 8ft from wall, how high is can the ladder reach?
Click here to see answer by fractalier(6550)

Question 274232: Find the area of the shaded part of this figure. Round the answer to one decimal place. Please note: the photo is of a square box with a circle inside of it. All four corners inside the box around the circle is shaded. There is 10 inches on one side of the outside of the box and there is 10 inches on the bottom outside of the box. Please advise. Thank you.
Click here to see answer by ankor@dixie-net.com(22740)

Question 274667: (((how do I find the area of the half-circle that is 3ft wide?)))
Click here to see answer by Alan3354(69443)

Question 274696: Find the function that models the area (A) of an equillateral triange in terms of the length (X) of one of its sides:
Where am I going wrong...please help!
I've began solving as follows:
Length - X
height - h
Area of a triangle is = 1/2 (length times height)
Because this is an equilateral triange, the Length (X) is equal to its Height (H
Therefore,
A= 1/2 (X times X)
A= 1/2 x squared
so, the function is: A(X)=1/2x squared.
I know this is the wrong answer because my textbook gives the final answer but does a horrible job of explaining the solution. Please help! Thanks!
Click here to see answer by scott8148(6628)

Question 274701: A Rectangle is inscribed in a semicircle of radius 10. Find a function that models the area (A) of the rectangle in terms of its Height (H).
WOW! I don't even know how to begin on this one. The answer is the textbook is A(h)=2h times square root of 100-h squared.
Please help!
Click here to see answer by scott8148(6628)

Question 275311: Prism M has a length of 3 units, width of 5 units, and height of 7 units. If the length, width, and height of Prism N are triple that of Prism M, then what is the surface area of Prism N?
Click here to see answer by Greenfinch(383)

Question 275532: what is the length of a base of a traingle with a height of 864 and a area of 1871
Click here to see answer by checkley77(12844)

Question 275765: Why can you find an excact Surface Area measurement for a prism but not a cylinder
Click here to see answer by solver91311(24713)

Question 275841: a box has a volume of 60 cubic inches. if the width is 4 inches and the hight is 5 inches what is the length of the box?

Click here to see answer by ankor@dixie-net.com(22740)

Question 276192: Find the area of an equilateral triangle, with apothem 10 times the square root of 3. inches?
Click here to see answer by solver91311(24713)

Question 276328: the rectangular prism is made of 40 cubes. each cube has an edge that measures 5in. what is the surface area of the prism
Click here to see answer by nyc_function(2741)

Question 276328: the rectangular prism is made of 40 cubes. each cube has an edge that measures 5in. what is the surface area of the prism
Click here to see answer by solver91311(24713)

Question 276860: what is the surface of sphere whose diameter is 20 foot

Click here to see answer by mananth(16946)

Question 276874: What is the length of one side of a square that has an area of 225 square cm?
Click here to see answer by stanbon(75887)

Question 276740: A 20-inch square piece of metal is to be used to make an open-top box by cutting equal-sized squares from each corner and folding up the sides. The length, width, and height of the box are each to be less than 14 inches. What size squares should be cut out to produce a box with volume 550 cubic inches?
What size squares should be cut out to produce a box with largest possible volume?
Click here to see answer by ankor@dixie-net.com(22740)

Question 277156: how to purchase a cover for a swimming pool that has a 3-foot walkway all the way around it. The cover must fit over the pool and the walkway.

Click here to see answer by CharlesG2(834)

Question 277321: the perimeter of an equilateral triangle is 10.5 cm. find the length of each side.
Click here to see answer by oberobic(2304)

Question 277319: find the area of a circle with the given denominator of 12ft

Click here to see answer by Alan3354(69443)

Question 277484: what is the cuberoot of 184
Click here to see answer by checkley77(12844)

Question 277507: The diameter of the base of a cone is 18 feet. The hight of the cone is 12 feet. What is the volume of the cone?
Click here to see answer by dabanfield(803)

Question 277536: find the area of a rectangular playground that is 2700^2 ft the length is 3 times the width
Click here to see answer by CharlesG2(834)

Question 277623: It says the outside dimensions of a picture frame are 4 feet by 29 inches.If its inside dimensions are 1 3/4 feet by 21 inches what is the area of the frame?
I dont understand where to start HELP?!?!
Click here to see answer by mananth(16946)

Question 277682: Why do we measure perimeter in ft, area in ft^2, and volume in ft^3?
What does each mean within the strand of measurement?
Why do students label with the incorrect exponent?
Click here to see answer by mananth(16946)

Question 277729: are there certain shapes of rectangular prisms that have the least amount of surface area with equal volume? i am trying to redesign a cereal box so that it holds the same amount of cereal but uses less cardboard and creates less waste.
i could use trial and error on different shapes and sizes but was curious if there are general shapes i should start with? thanks
Click here to see answer by scott8148(6628)

Question 277789: The depth of a rectangular pool is 2 feet. The volume is 16 cubic feet. What is the area in square feet of the bootom of the pool?
Click here to see answer by stanbon(75887)

Question 277796: A circular flower garden with a diameter 30 meters has a walkway around it. If the width of this walkway is 3 meters, what is the area?
Click here to see answer by checkley77(12844)

Question 278020: What is the area of a three sided lot measuring 81'x250'x344'? thanks.
Click here to see answer by ankor@dixie-net.com(22740)

Question 278149: right triangle prism with a base area of 30m2 and a height of 12 m
Click here to see answer by checkley77(12844)

Question 278416: What is the pie shaped region of a circle determined by an angle whose vertex is at the center of the circle?
Click here to see answer by stanbon(75887)

Question 278497: The surface area S of a right prism is given by
S= 2b + Ph,
where B is the area of the base, P is the perimeter of the base, and h is the height of the prism.
Solve for P.
Click here to see answer by solver91311(24713)

Question 279108: HELP!!
Find a formula that gives the area of a square in terms of the perimeter.
Click here to see answer by rfer(16322)

Question 279110: PLEASE HELP!!
Show that an equilateral triangle with area A has sides of length 2squarerootA/3^(1/4).
Click here to see answer by Fombitz(32388)

Question 279190: I am wondering the square footage of a 40ft. hexagon tent?
Click here to see answer by Alan3354(69443)

Question 279499: what is the surface area of a cube that has sides of a length of 4 cm
Click here to see answer by rfer(16322)

Question 279499: what is the surface area of a cube that has sides of a length of 4 cm
Click here to see answer by Alan3354(69443)

Question 279499: what is the surface area of a cube that has sides of a length of 4 cm
Click here to see answer by mananth(16946)

Question 279619: what is the volume of a cube if it 5 1/3 inches
Click here to see answer by unlockmath(1688)

Question 279083: how do you find they surface area of a right cone when the radius isnt there?
Click here to see answer by Inkyvoyd(17)

Question 279679: The area of the shaded part of a square is 72 square inches. Find the length of the square.
I cannot figure this question out.
Click here to see answer by Alan3354(69443)

Question 279789: hi, how do you find surface area???
please respond as soon as possible thanks, Taylor.
Click here to see answer by stanbon(75887)

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