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

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Question 955391: Given that total surface area is 96pi(2 deciimal places 301.59) and the slant height l is 10 can you find me r?or h?Doesn't matter which one is it as I will be able to work out the other one.Thanks!
Click here to see answer by macston(5194)

Question 955370: 20 square inches. If the base of the tiles is 5 inches. Find the height of the each tile? If needed, round to the nearest hundredth.

Click here to see answer by Alan3354(69443)

Question 955449: A child's block is in the shape of half a cylinder. (It has a picture and it's like and the arc thing, it looks like a semicirle to me tho). The block is 10cm wide, 5 cm high and 3.5 cm thick. Find the surface area. The answer is 35 + 42.5pi in. I don't get how to get to that answer. Thanks!
Click here to see answer by macston(5194)

Question 955455: Perimeter of one face of a cube is 20cm find its volume
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Question 955452: Find the percentage decrease in the curved surface area of square of its diameter is decrease by 25%
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Question 955466: 27 inches rounded to the nearest hundredth

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Question 955534: The surface area of this cube is 96 square centimeters. What is the value of a
Click here to see answer by macston(5194)

Question 955610: How many square inches of metal are needed to make a soup can that is 2 2/3 in. in diameter and 4 in. high? The answer is (128 pi)/9 in. I'm not sure how to get to that answer. Thank you!!!!
Click here to see answer by Zucchini(70)

Question 956085: How many cubic centimeter blocks are needed to fill a closed box with dimension: L=5cm, W=4cm, and H=3cm? How does its surface area compare with a square meter?

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Question 956157: Some houses, like the one shown at the right, have roofs that are in the shape of right pyramids with rectangular bases. (It's just a picture of a regular house). The base of the front part of the house shown in the photo is rectangular, 20 ft by 30 ft. The walls of the house are 9ft height and the peak of the roof is 14 ft high. Find the surface area of the roof. I can't use the formula (1/2)(l)(p) + B, because the base is irregular. I tried the Pythagorean Theorem, to find the area of the lateral faces and then added the base to it, but it didn't get me to the answer I was looking for. The answer is 651.638 ft squared. A thank you for anyone who helps!!!
Click here to see answer by macston(5194)

Question 956160: Suppose the net shown at the right is turned into a cone. (It's just a regular net of a cone). The arc degree is 120 degrees and the length of the slant height is 10mm. The circumference of the base is 20.944 mm. Calculate the altitude of the cone. I thought all I had to do was do the Pythagorean Theorem to find the height, but if the slant height and the radius are both 10 cm, won't the height just be 0? Or am I missing something? I'm not quite sure. The answer is 9.428 mm. Thank you!!!!
Click here to see answer by macston(5194)

Question 956158: What is the length of a rectangular prism when volume is 126, width is 7 7/8, & height is 2?
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Question 956365: The lateral surface of a right circular cylinder is 330π sq. cm.. If its altitude is 20cm, find the diameter of its base.
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Question 956509: The Giant Causeway in Northern Ireland is a mass of basalt prism-shaped columns packed tightly together... Most of the prisms are hexagonal. The average height of a column is about 14 m. The average diameter of the columns is 45cm. Assuming that the average column is a regular prism, find the surface area of an average column of the Giant's Causeway. (I put the "..." to show that stuff was included, but it's unnecessary info because it's talking about how they were formed and not talking about shapes or anything) I'm not sure how to even start this problem because it's saying hexagonal prism and then stating the diameter, I'm not sure what to do with that. Thank you!!!!!!
Click here to see answer by macston(5194)

Question 956551: What is the area of a regular do decagon with radius of 20cm. Round answer to nearest tenth
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Question 956736: Which value for the perimeter of the rhombus makes the area equak to 96 aquare meters"
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Question 956746: A small plane is flying a banner in the shape of a rectangle.the area of the banner is 144 square feet.the width of the banner 1/4 the length of the banner.what are the dimensions of the banner.
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Question 957042: how to find the surface area for a prism with base width of 32 , length of 49 and height of 41?
Click here to see answer by jim_thompson5910(35256)

Question 957218: The octagon has a radius of 10. Find area.
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Question 957964: Find the circumference use 22/7 for pi round to whole number
The first question is. Diameter = 14 in

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Question 958159:
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Question 958123: if a rectangle has the area of 744 cm squared what are the dimensions
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Question 958126: A prism has a surface area of 350 mm2.

Find the surface area of a scaled image with a scale factor of 2.
Click here to see answer by Theo(13342)

Question 958278: A sphere has a diameter of 7 centimeters. What is its surface area? Use 3.14 to approximate pi
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Question 958278: A sphere has a diameter of 7 centimeters. What is its surface area? Use 3.14 to approximate pi
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Question 958344: A rectangular poster has an area of 22 sq. ft. It is 3 2/3 feet wide at its base. What is the height of the poster?
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Question 958344: A rectangular poster has an area of 22 sq. ft. It is 3 2/3 feet wide at its base. What is the height of the poster?
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Question 958527: the area of a square is 400 square feet what is the perimeter?
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Question 958844: if i have a regular hexagon with a perimeter of 216 inches, how many square meters of area will the hexagon be? please explain the steps . thank you.
Click here to see answer by rothauserc(4718)

Question 958947: how can i find the slant height of a square pyramid if one side of the base is 5ft ad the srface area is 125 ft???????
Click here to see answer by Alan3354(69443)

Question 958910: the surface area of a cylinder how do you solve them?
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Question 959096: A prism has a surface area of 350 mm2.

Find the surface area of a scaled image with a scale factor of 2.

Click here to see answer by jim_thompson5910(35256)

Question 959233: Mathew cuts four right angled triangles from the corners of a square cardboard. What is the perimeter of the cardboard after Mathew cuts out the triangles?

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Question 959232: Mathew cuts four right angled triangles from the corners of a square cardboard. What is the perimeter of the cardboard after Mathew cuts out the triangles?
the side of the square is 8 units, and the right triangles on the corners are 2 units per leg.
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Question 959306: A square has an area of 250m. I was wondering how long the sides would be as there are no other measurements
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Question 959264: earth's radius is approximately 4000 miles. about 2/3 of earth's surface is covered by water. estimate the land area on earth?
Click here to see answer by checkley77(12844)

Question 959459: The length of a lawn is 4 ft more than its width. If the perimeter of the lawn is 40 ft, what is the area of the lawn?
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Question 959714: Find the length of the side of a square with an area of 10 square units
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Question 960328: The circumference of a circular cover is 66ft. What is the area of the cover?
i need to be able to show the work

Click here to see answer by macston(5194)

Question 960541: Find the diameter of a sphere with volume 576pi in^3
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Question 961500: If r = 7 cm and h = 5 cm, what is the approximate surface area of the cylinder? (Use 3.14 for pi.)
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Question 961483: If two cylinders have the same lateral area, will the total surface area of the two cylinders also be the same?
Click here to see answer by Alan3354(69443)

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