₦airaland Forum

Maths tutors/lecturers or professors have to be patient with does who are willing to learn,
You are their teacher because you learnt it first not because you are more intelligent.
Let's try this out I will bring solution tomorrow.
Hmmm
Everywhere Green.

Show workings

Anyone?

EA = AD = x

Diagonal = semicircle diameter = √(x²+x²) = x√2

Radius of semicircle = x√2/2

Now AF² = x² -(x√2/2)²

AF² = x² - 2x²/4 = x²/2

AF = x/√2

But AF + FG = 14√2
x/√2 + x√2/2 = 14√2
2x +2x = 4*14
x = 14
R of semi circle = x√2/2 = 7√2
r of the circle = 7√2/2

Area of the green region = Area of the semicircle - Area of the circle

π (7√2)²/2 - π (7√2/2)²

π(98/2 - 98/4) = π 98/4 = 22/7 * 98/4 = 77 units²

femi4:
EA = AD = x

Diagonal = semicircle diameter = √(x²+x²) = x√2

Radius of semicircle = x√2/2

Now AF² = x² -(x√2/2)²

AF² = x² - 2x²/4 = x²/2

AF = x/√2

But AF + FG = 14√2
x/√2 + x√2/2 = 14√2
2x +2x = 4*14
x = 14
R of semi circle = x√2/2 = 7√2
r of the circle = 7√2/2

Area of the green region = Area of the semicircle - Area of the circle

π (7√2)²/2 - π (7√2/2)²

π(98/2 - 98/4) = π 98/4 = 22/7 * 98/4 = 77 units²

You are correct. I got the same thing too.

femi4:
EA = AD = x

Diagonal = semicircle diameter = √(x²+x²) = x√2

Radius of semicircle = x√2/2

Now AF² = x² -(x√2/2)²

AF² = x² - 2x²/4 = x²/2


AF = x/√2

But AF + FG = 14√2
x/√2 + x√2/2 = 14√2
2x +2x = 4*14
x = 14
R of semi circle = x√2/2 = 7√2
r of the circle = 7√2/2

Area of the green region = Area of the semicircle - Area of the circle

π (7√2)²/2 - π (7√2/2)²

π(98/2 - 98/4) = π 98/4 = 22/7 * 98/4 = 77 units²

Good one sir √√√√√√√√√√√(11/10)

Mrshape:
Good one sir √√√√√√√√√√√(11/10)

I bet you did not realise that there are a lot of badazz mathematicians on Nairaland.

naturalwaves:
I bet you did not realise that there are a lot of badazz mathematicians on Nairaland.

I have been fetching them out lately with my post sir,
It gives me joy to see like minds sir.

Mrshape:
I have been fetching them out lately with my post sir,
It gives me joy to see like minds sir.

Lolz.
They are much o. I do not know the names you have on your list already. Perhaps I could add more.

naturalwaves:
Lolz.
They are much o. I do not know the names you have on your list already. Perhaps I could add more.

Also check ifada123 thats my main account, go through my post you will see more of them.
I have a lot of them following me.