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Maths, Addmaths and Statistics: Post your doubts here!

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(i) lets divide it in three parts, Square which is 8 in base and 13 in height (Diameter of Circle, :p Calculated by adding Base + Top / 2), and two equal triangles...
Triangle Base^2 + Hieght^2 = Hypotenuse^2
so 5^2 + 13^2 = 194

Sqaure root 194 and you get BC and AD = 13.928

(ii)Hieght = 13, as shows above

(iii) Volume of Trapezuim = (18+8)*13/2 = 169 (- Volume of Circle = 6.5^2 x Pi = 132.73) = 36.3 Round to 3 s.f
How did you get the diameter of the circle with that formula?
Dark Destination
 
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(i) lets divide it in three parts, Square which is 8 in base and 13 in height (Diameter of Circle, :p Calculated by adding Base + Top / 2), and two equal triangles...
Triangle Base^2 + Hieght^2 = Hypotenuse^2
so 5^2 + 13^2 = 194

Sqaure root 194 and you get BC and AD = 13.928

(ii)Hieght = 13, as shows above

(iii) Volume of Trapezuim = (18+8)*13/2 = 169 (- Volume of Circle = 6.5^2 x Pi = 132.73) = 36.3 Round to 3 s.f
o_O whats that? what did u do to find the diameter in (i)?
I am feeling ur answer is wrong.
 
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View attachment 38387
calculate:-

AD = BC
i) length of BC.
ii) hieght of trapezium.
iii) total area of shaded region, nearest to cm^2.

Dark Destination
Awesome12
funky brat
all the maths freaks
try doing this :p the Q neither my class fellows, nor my add maths teacher could solve (though he did it after 20 mins :p)
but my Maths teacher, obviously, did :D
shgsgj.JPG

0.5 AB = BE
0.5 CD = CE
both because tangents of a circle are equal from the point of intersection to the points where they touch the circle

so BE + CE = BC = 9 + 4 = 13
and Asad.Babur, u got 13.9something :p

despicable-me-oh-yeah-o.gif

Owh Yeah!!!!!!!!!!!!!!!!!!! :cool:
Dark Destination , who is MATHs MASTER!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! :D
 
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^^ though my brother told me the solution :ROFLMAO:
I be shokha for no reason :censored: I am no Maths Master, i should die.
 
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View attachment 38396

0.5 AB = BE
0.5 CD = CE
both because tangents of a circle are equal from the point of intersection to the points where they touch the circle

so BE + CE = BC = 9 + 4 = 13
and Asad.Babur, u got 13.9something :p

despicable-me-oh-yeah-o.gif

Owh Yeah!!!!!!!!!!!!!!!!!!! :cool:
Dark Destination , who is MATHs MASTER!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! :D
I am noway maatee, but my ans is not wrong I believe... Because hypotenues = base ^ 2 + hieght ^2 .....


Secondly, you asked your bro?
 
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