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

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Question 1132966: The perimeter of a right triangle with side lengths that are integers, and having the same area as a rectangle with dimensions 36 cm by 45 cm, is in cm...?
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Question 1133160:
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Question 1133392: A swimming pool 2 meters deep, 11 meters long, abd filled with water. What is the area of the water surface?
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Question 1133447: 2 π r^2 + 2 π r h
Solve for h.
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Question 1133516:
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Question 1133612: The center of a circle is (1,2) and the point (3,13) is on the circle. What is the area of the circle?
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Question 1133612: The center of a circle is (1,2) and the point (3,13) is on the circle. What is the area of the circle?
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Question 1133661: A three thousand year old babylonian tablet was discovered in 1936 gives the ratio of the perimeter of a regular hexagon to its circumscribed circle as 57/60+36/60^2. From this what did the Babylonians think π was equal to?
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Question 1133859: Three concentric circles are drawn such that the area of the smallest circle is equal to the area of each of the rings. If the radius of the largest circle is 12cm, what is the radius of the smaller circle?
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Question 1133905: are equal. The base radius of one is 5 cm and its slant height is 12 cm. Calculate the height of the second cone if its base radius is 6 cm.
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Question 1133942: The curved surface areas of two cones are equal. The base radius of one is 5 cm and its slant height is 12 cm. Calculate the height of the second cone if its base radius is 6 cm.
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Question 1133955: A twenty-kilogram bag of rice is consumed by m, number of boys in 10 days. When four more boys joined them, the same quantity of rice lasted only 8 days. If the rate if consumption is the same, find the value of m.
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Question 1133964: An open box with base 14 cm by 18 cm and height 9 cm (external dimensions) is constructed with all four sides and the bottom 2 cm thick. What is the total surface area of this box in square cm?
Click here to see answer by Glaviolette(140)

Question 1133854: An open box with base 14 cm by 18 cm and height 9 cm (external dimensions) is constructed with all four sides and the bottom 2 cm thick. What is the total surface area of this box in square cm?

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Question 1134200:
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Question 1134258: C is the center of the large circle. Each of the smaller circles has a radius that is half the radius of the large circle. Find the ratio of area a to area b.
Link to diagram : http://tinypic.com/r/2vxhrv4/9
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Question 1134326: If there is a circle in the center of a square platform with a diameter of 15 feet, and the platform has a length of 22 feet. What will be the apporoximate area, in square feet of the region outside the circle? Round your answer to the nearest hundredth. (Use pie is approx. 3.14 to figure out answer)

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Question 1134413: A pyramid has a rectangular base with edges of length 10 and 24. The vertex of the pyramid is directly 13 units above the center of the base. What is the surface area?
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Question 1134450: A cone of height 9cm has a volume of n cm³ and a curved surface area of n cm².find its vertical angle?
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Question 1134594: what is the area of a figure that has a base of 4 feet width 8 feet and length of 12 feet
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Question 1134591: How much artificial turf should be purchased to cover an athletic field that is in the shape of a trapezoid with a height of H = 12 m and bases that measure T = 49 m and B = 34 m?
Click here to see answer by mathsolverplus(88)

Question 1134854: Imagine you are planning to use circles to visually compare the populations of California (38,800,000), Texas (28,240,245), and New York (19,807,500). The size of each population will be represented by the area of each circle, not the radius.
What should the area and radius be for the circle representing the population of California? Please answer in cm^2

Click here to see answer by greenestamps(13200)

Question 1134853: Imagine you are planning to use circles to visually compare the populations of California (38,800,000), Texas (28,240,245), and New York (19,807,500). The size of each population will be represented by the area of each circle, not the radius.
What should the area and radius be for the circle representing the population of Texas? Please answer in cm^2

Click here to see answer by greenestamps(13200)

Question 1135144: A rectangular pool takes 900ft3 of water to fill up. If it measures 10ft wide and 15ft long, how deep must the pool be, assuming that there is 1ft extra room between top o the water and pool edge?
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Question 1135322: a hole with a diameter of 3.5 cm is drilled through a square metal nut of thickness 4 cm and length 6 cm. what is the surface area
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Question 1135348: Whitney used 4 cm of tape for every present she wraps. Write an equation that shows a relationship with a number of presents x and the type used y.

Click here to see answer by MathLover1(20849)

Question 1135675: please help me solve this quest
ion ((( a cone whose base diameter and vertical height are 24cm and 5cm respectively is unfolded to form a sector of circle. calculate (i)the radius of circle (ii) the angle of sector.

Click here to see answer by Theo(13342)

Question 1135970: A right circular cone sits on a table, pointing up. The cross-section triangle, perpendicular to the base, has a vertex angle of 60 degrees. The diameter of the cone's base is 12\sqrt{3} inches. A sphere is placed inside the cone so that it is tangent to the sides of the cone and sits on the table. What is the volume, in cubic inches, of the sphere? Express your answer in terms of $\pi$.
Click here to see answer by Edwin McCravy(20055)

Question 1136244: A square tile has an area of 169 square inches, what is the length of one side of the tile?
14 inches
13 inches
12 inches
11 inches
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Question 1136256: ABC is inscribed in a circle|AB|= 5cm,|AC|=7cm and AB is the diameter of the circle
Find the radius of the circle.
Find the area of the shaded portion

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Question 1136402: The lengths of the bases of the right trapezoid are 9 cm and 18 cm. The length of the longer leg is 15 cm. Find the area of the trapezoid.
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Question 1136404: Given:
MK⊥LM, MK⊥KN
MN=13, KL=15, LM-KN=4
Find: Area of KLMN.
https://lh3.googleusercontent.com/5QOz1XKjH41wSp7YLvf8CQHlJJmXpmR_TCV_t5zhia7mfJma9ozdGPlwiSOVYHE753-V3Q=s170
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Question 1136623: A prism with a base area of 5 ft² and a height of 10 ft is dilated by a factor of 6/5.

What is the volume of the dilated prism?
Enter your answer, as a decimal, in the box.
Click here to see answer by Saffana(5)

Question 1136818: Triangle CAE is an enlargement of triangle CBD with a scale factor 4/3.
Given that the area of CBD is 9cm², find area of ABDE
A / \
/ \B
/ /\
/ / \
/ / \
/____/______\
E D C
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Question 1136820: 2 solid cones are geometrically similar and the height of one cone is 1.5 times that of the other. Given that the height of the smaller cone is 12 cm and its surface area is 124cm², find
i) height
ii) surface area, of the larger cone.
Click here to see answer by greenestamps(13200)

Question 1136819: In a scale drawing of a house, width, 150cm, of a door is represented by a line 30mm long. Find actual area land, in sq metres, occupied by house if corresponding area of plan is 3250cm².
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Question 1136883: The circle graph shows the breakdown of Jada's college tuition and fees.
Using what you know about angle relationships, find the central angle measure for the section of the graph that represents Jada's room expenses. Round your answer to the nearest whole number.
Click here to see answer by Alan3354(69443)

Question 1137119: Figure PQRST with a measured angle of 120 degrees is dilated with center P and a scale factor of 1.45. Under this dilation, it is mapped onto figure UVWXY. Figure UVWXY is then mapped onto ABCDE by a reflection about segment UV. The area of PQRST is 20 square inches. Find the area of ABCDE.
Click here to see answer by Edwin McCravy(20055)

Question 1137216: A cube of side length a is modified by cutting a cubic shape of side length b from one of it's corners. In addition a cylindrical hole is cut through the shape with a radius of size c. If the value of a is 18.0, b is 1.2 and c is 5.0, what is the surface area of this shape? (Use 3.14 as the value of pi)
IMAGE:https://docs.google.com/document/d/1EuzKCVDRH2lBm-0rJ9iJf5z3u57SL8CGyFsLU8AQ7UM/edit?usp=sharing
Click here to see answer by MathLover1(20849)

Question 1137218: A contractor is going to paint the room shown above. The paint costs $28.03 a gallon. One gallon of paint covers about 400 square feet with one coat. For a second coat, one gallon can cover about 600 square feet. The ceiling is 10 feet high, doors are 8 feet high, and windows are 4 feet high. Doors and windows are 3 feet wide.
Find the number of gallons of paint to put two coats on the walls and ceiling. Then find the cost of the paint to complete the work.

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Question 1137485: A cylinder has radius 8.09 feet and height 16.3 feet.
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Question 1137532: Calculate the quantity of sheet metal that would be needed to make 8 cylindrical canisters with a diameter of 10 cm and a height of 20 cm.
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Question 1137652: Topic is really Area, Perimeter, and Circumference. I did not see that in the drop down.
What is the total length of weather stripping needed for 12 windows that each measure 90 cm by 12 cm?
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