![Mathematics](/tpl/images/cats/mat.png)
Mathematics, 08.02.2021 07:10, anarosa52505pdizws
A barn is an agricultural building usually on farms and used for various purposes. In the
North American area, a barn refers to structures that house livestock, including cattle and
horses, as well as equipment and fodder, and often grain.
1 Ramkaran want to build a barn at his farm. He has make a design for it which is above. Here
roof is arc of a circle of radius r at centre O.
On the basis of the above information, answer any four of the following questions:
What is the value of radius of arc?
() 4β3 () 4β2 () 2β3 () 2β2
2 What is the length of BF?
() 4(β3 + 1) () 4(β2 + 1) () 4(β3 β 1) () 4(β2 β 1)
3 What is the value of angle AOC?
(a) 30Β° (b) 90Β° (c) 45Β° (d) 60Β°
4 What is the curved width of roof?
() 2 β3 () 4 β2 () 2 β2 () 4 β3
5 What is area of cross section of barn?
() 8(6 + ) 2
() 4(6 + ) 2
() 8(3 + ) 2
() 4(3 + ) 2
![answer](/tpl/images/cats/otvet.png)
Answers: 2
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A barn is an agricultural building usually on farms and used for various purposes. In the
North Ame...
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