Take necessary precaution, stay safe and relax your mind with this shape

stanisbaratheon:



Okay.

I wish I can do the construction to verify that.

Well, What I did was to assume a line drawn from point "F" upward to the circumference of the main semicircle, and then deducted the radius of the small semicircle from the Radius of the main semicircle to get the diameter of the shaded portion.

TalabiAudu:
Let me refresh first

okrikaboi:
I gave up on maths since 2018 and I promised never to return and I have not regretted my decision.

Martinez39s:
I know I am correct. I have even plotted the graphs of the circles using my results.
#CoordinateGeometry

everyone day jump and pass even me I have not solved,
But as far it is shape I know I have the solution
Modified

Here is the basic solution

Note circle that torches externally has a straight line which is equal to the sum of the radi

Not the time Mrshape

14

ugwumichael:
14

By observation i t can't be 14cm^2
Try again or rather prove answer with a solution

Oluwasaeon:
Not the time Mrshape

It is still available till tomorrow you solve it for us at your appointed time

Martinez39s:
A = π(11.2)² = 394.0813824663 cm²

The magician
I will tell you if you are correct tomorrow let others try

Mrshape:

It is still available till tomorrow you solve it for us at your appointed time

Lol

Mrshape:

The magician
I will tell you if you are correct tomorrow let others try

I know I am correct. I have even plotted the graphs of the circles using my results.
#CoordinateGeometry

its 346.5cm^2(taking pi as 22/7)

Martinez39s:
I know I am correct. I have even plotted the graphs of the circles using my results.
#CoordinateGeometry

Lol You are correct,
But I will also appreciate basic solution

I gave up on maths since 2018 and I promised never to return and I have not regretted my decision.

okrikaboi:
I gave up on maths since 2018 and I promised never to return and I have not regretted my decision.

Until you start writing amplitude test for big employment and contract

Martinez39s:
I know I am correct. I have even plotted the graphs of the circles using my results.
#CoordinateGeometry

please wat app did u use to plot the result?

Let me refresh first

TalabiAudu:
Let me refresh first

Waiting

1385.44/4= 346.36 sq.cm

stanisbaratheon:
1385.44sq.cm

Show workkngs

Mrshape:

Show workkngs

Diameter AB= 56cm
Radius of AB=56/2=28cm
Diameter of AE=EF=FG=GB=56/4=14cm
Radius of AE=EF=FG=GB=14/2=7cm

Diameter of shaded portion=28-7=21cm

Area of shaded portion=(πD^2)/4=(π×21^2)/4

Area=(3.14159×21^2)/4=1385.44/4 =346.36sq.cm

I got 346.4 using pie as 3.412

Using some construction and a bit of pythagoras stuff, i got 8.65cm as the radius of d shaded circle. The area of the shaded circle would be 3.142 * 8.65 * 8.65 = 235.09cm sq. to 2 d.p

stanisbaratheon:


Diameter AB= 56cm
Radius of AB=56/2=28cm
Diameter of AE=EF=FG=GB=56/4=14cm
Radius of AE=EF=FG=GB=14/2=7cm

Diameter of shaded portion=28-7=21cm

Area of shaded portion=(πD^2)/4=(π×21^2)/4

Area=(3.14159×21^2)/4=1385.44/4 =346.36sq.cm

28-7=21 has no proof

dazzlingd:
I got 346.4 using pie as 3.412

Show workings

Rezos017:
Using some construction and a bit of pythagoras stuff, i got 8.65cm as the radius of d shaded circle. The area of the shaded circle would be 3.142 * 8.65 * 8.65 = 235.09cm sq. to 2 d.p

Show diagram

Mrshape:

28-7=21 has no proof

How so??

I think what I did was correct. But if you still think otherwise, why am I wrong?

Mrshape:

Show diagram

Ok your Highness. A diagram will be posted as you ordered. And what's the reward for all d mental stress? Dont tell me its jus to keep one's mind off corona virus wahala

stanisbaratheon:


How so??

I think what I did was correct. But if you still think otherwise, why am I wrong?

The line joining the the shaded circle to the top of the smallest circle is a chord not a diameter.
The diameter did not stop at the to of the circle thus
Diameter of shaded circle>28-7
Clear?

Rezos017:
Ok your Highness. A diagram will be posted as you ordered. And what's the reward for all d mental stress? Dont tell me its jus to keep one's mind off corona virus wahala

If you get it j will give you more shapes to solve as a reward.
What else does Mr shape has to offer

Mrshape:

If you get it j will give you more shapes to solve as a reward.
What else does Mr shape has to offer

mmmm...looks like its high time u changed ur moniker from 'Mr Shape' to something else. How about 'Mr CashPrize'?

Mrshape:

The line joining the the shaded circle to the top of the smallest circle is a chord not a diameter.
The diameter did not stop at the to of the circle thus
Diameter of shaded circle>28-7
Clear?

hmmmm.....

Chord to which?? The shaded circle or the small semicircle??

stanisbaratheon:


hmmmm.....

Chord to which?? The shaded circle or the small semicircle??

It us a chord of the shaded circle