Maths, Addmaths and Statistics: Post your doubts here!

[Asad.Babur]

***amd***

a) BC= 13.9 cm
b) h=13 cm
c) Area of shaded= 36cm^2

Lol, is this right?

Love you! We both have same answers! Time to get confirmed by amd!

 

[Dark Destination]

(i) lets divide it in three parts, Square which is 8 in base and 13 in height (Diameter of Circle, 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

Wow. You did it.

 

[Dark Destination]

Love you! We both have same answers! Time to get confirmed by amd!

Haha. His add-maths teacher took 20 minutes. And you took 15 minutes.

 

[Asad.Babur]

Haha. His add-maths teacher took 20 minutes. And you took 15 minutes.

3 mins to solve after 12 mins to CRY It looked like impossible at first sight STILL bETTER THAN ADD MATHS TEACHER, AM I?

 

[***amd***]

-_- its ur answer, i m stll studying phys xD

 

[Asad.Babur]

-_- its ur answer, i m stll studying phys xD

Phys? What is Phys?

 

[Dark Destination]

3 mins to solve after 12 mins to CRY It looked like impossible at first sight STILL bETTER THAN ADD MATHS TEACHER, AM I?

Lol, you added the top and bottom sides and divided by 2.
Wow! Even i didn't think of that.

I was dividing it into triangles and making it all complicated.

Anyways. For a guy who was having trouble buying a calculator, you're good at maths.
I'm giving you the title of ''Maths-master'' on this website.
Say goodbye to your title, amd. He's the new maths-master. xD

 

[Asad.Babur]

OH! Amd, next time you post such challenege, GET ANSWERS FIRST

 

[Awesome12]

But they have found the height before finding BC. That signifies an error

 

[Asad.Babur]

Lol, you added the top and bottom sides and divided by 2.
Wow! Even i didn't think of that.

I was dividing it into triangles and making it all complicated.

Anyways. For a guy who was having trouble buying a calculator, you're good at maths.
I'm giving you the title of ''Maths-master'' on this website.
Say goodbye to your title, amd. He's the new maths-master. xD

Firstly, It is formulae of Surface of Trapezium ((Base+Top)*Hieght*1/2)

Secondly, amd Deserves this title more

 

[Asad.Babur]

But they have found the height before finding BC. That signifies an error

That signifies, error in question order, becauses you cannot calculate SLANT HEIGHT of Trapezuim unless you have given Interior angles,....

 

[Dark Destination]

Firstly, It is formulae of Surface of Trapezium ((Base+Top)*Hieght*1/2)

Secondly, amd Deserves this title more

You're right.
Amd has showed competence in maths. His replies and solutions on this thread were remarkable.

All you did was solve a question. But that too, wasn't a small thing.

Okay, he's the maths-master again. You should work harder to earn this title!

 

[Dark Destination]

But they have found the height before finding BC. That signifies an error

Maths is all about finding ways.
Every question has a million ways to be solved. Doors with so many keys. And everyone has a different key.

But you're right. BC should have been found first.

 

[Asad.Babur]

You're right.
Amd has showed competence in maths. His replies and solutions on this thread were remarkable.

All you did was solve a question. But that too, wasn't a small thing.

Okay, he's the maths-master again. You should work harder to earn this title!

Yes, there are two kinds of people in this thread, Question askers (us) , Solution maker (***amd***) hatts off

 

[Asad.Babur]

Maths is all about finding ways.
Every question has a million ways to be solved. Doors with so many keys. And everyone has a different key.

But you're right. BC should have been found first.

OK!

 

[Dark Destination]

OK!

I'm getting a feeling we got the wrong answer.

 

[Asad.Babur]

I dont, It is another way to get answer Dark Destination

 

[***amd***]

Yes, there are two kinds of people in this thread, Question askers (us) , Solution maker (***amd***) hatts off

i dont care whosoever has that title, maths is still gonna be my love

 

[Asad.Babur]

i dont care whosoever has that title, maths is still gonna be my love

20 seconds more and if answer is not revealed /............... I AM GOING TO KILL YOU

 

[***amd***]

20 seconds more and if answer is not revealed /............... I AM GOING TO KILL YOU

-_- i m still not doing that Q.
teaching somebody. i need to concentrate. try to understand plz. no alerts