419 Answered Questions for the topic Area

11/29/15

I have a 8x10 picture frame and want to fit 60 pictures in it. How big do the pictures need to be?
Im in need of help for a Christmas present. I want to do a collage of pictures but I don't know how small the pictures need to be in order to fit all 60. if it won't work, I can always group... more
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11/26/15

The diameter of a big trundle wheel is 50 cm
A) How far does it roll along the ground in on turn( correct to one decimal place)?   b) If the diameter were 100 cm, how much further would it have rolled?   C) If the diameter of a circle is... more
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Area

11/21/15

area of circle
In a circle , AB=AC are two chords. If ∠BOC= 120°, find ∠BAC, ∠ABO and ∠ACO
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Area

11/19/15

area of circle
A 24cm long chord is 5cm away from the centre of a circle, find the length of a diameter of the circle.
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Area

11/19/15

area of circle
A circular was made for John's birthday. John cut it into 22 equal pieces. If the top surface of each cake was 28cm2. Find the circumference of the cake.
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Area

11/18/15

area of circle
A circular garden of radius 140m has a circular footpath 7m along its outer edge. Find the length of iron fencing needed to cover the outer edge of the footpath.
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Area Calculus

11/17/15

Calculus Homework Question
Approximate the area under the curve f(x)= 4x2+1 on the interval [2,5] using 4 rectangles of equal width. Get the heights from the right-hand sides.
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Area

11/17/15

area of right circular cylinder
A 15m tall pillar consists of two parts. The diameters of the base at the bottom and the top-most circular disc are in the ratio 4:3. If the total area of the curved surfaces of both the parts of... more
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Area

11/16/15

area of right circular cylinder
A 10m long iron pipe has a thickness of its wall of 3.5cm and its inside diameter is 15.4cm. Find the cost of painting its outside surface at the rate of 140 per m2.   Urgently required!
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Area

11/16/15

area of circle
if the total surface area is 628cm2 and slant height is 17cm find radius
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Area

11/16/15

area of circle
A circular metallic ring of radius 100cm, is broken to make some equal squares out of it. If the side of a squalre measures 39.25cm. Find the number of squares made.
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Area

11/16/15

area of circle
The diameters AB and CD perpendicular to each other. If the length of the arc ADB is 22cm. Find the radius of the circle.
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Area

11/14/15

area of sphere
Had the diameter of a sphere been decreased by 2cm, its surface area would have diminished by 113.04 cm2 . Find the surface area of the sphere.
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Area

11/14/15

area of cone
In an " Arts and Crafts Function" a conical structure with four open doors was built. The slanting height and the base diameter of the conical structure was 22m and 28m respectively. If the area of... more
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Area

11/14/15

area of circle
In a circle two chords are given which parallel.Mid point of AB is M and that of CD is N AB=12 cm , CD=16cm and OM=8 cm .Find ON.
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Area

11/14/15

area of cone
Students of a class were when asked to make cones from sheets of paper, cones made by I and J had ratio of the curved surface areas equal to 3:4. If the slanting heights of both the cones were... more
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Area

11/14/15

area of cone
In an " Arts and Crafts Function" a conical structure with four open doors was built. The slanting height and the base diameter of the conical structure was 22m and 28m respectively. If the area of... more
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Area

11/14/15

area of right circular cylinder
The radius and the height of a right circular cone are respectively 21 cm and 28 cm .From its base to a height of 14 cm., the portion of the curved surface was painted golden and the upper portion... more
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Area

11/13/15

area of right circular cylinder
To level the top of the school play ground for the animal sports a hand-drawn roller of diameter 56cm was engaged. A group of students involved in the job found that after making 10 continuous... more
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Area

11/13/15

area of right circular cylinder
320 numbers of steel pipes, each of outer diameter 1.4m were used in laying a pipe-line from an oil collecting station to an oil Refinery. If the area of the outer curved surface of a pipe is 66m2.... more
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Area

11/13/15

area of right circular cylinder
A tunnel was constructed for the metro-railway and any cross-section of the inside curved is a semi-circle with a diameter 8m. If the cost of painting the inside curved surface of the tunnel is... more
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11/13/15

area of right circular cylinder
The diameter of the base of a right circular cylinder is 18.2 cm and the ratio of the area of its curved surface to the area of the base is 15:13. Find the total surface area of the cylinder?
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Area

11/13/15

area of right circular cylinder
A closed cylindrical vessel of length 20 cm and diameter 10.5 cm is to be made from a light metal sheet. What is the total area of the sheet required for it?
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Area

11/12/15

an annulus has an outside diameter of 60 mm and an inside diameter of 20mm. determine its area
answerv this question please
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11/11/15

area of parallelogram
A cylinder well has 14 cm thick wall and its depth is 20 m. If the diameter of the outer circle of the wall is 3.08m. Find the area of its inner curved surface.
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