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Using " Area Boy" Song,Or Your Unique Way. Solve The Area (mr Shape) - Education - Nairaland

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Using " Area Boy" Song,Or Your Unique Way. Solve The Area (mr Shape) by ifada123: 8:50am On Apr 22, 2019
Find the area of the shaded portion
This is the first for today
Difficulty :Low

Re: Using " Area Boy" Song,Or Your Unique Way. Solve The Area (mr Shape) by ifada123: 10:29am On Apr 22, 2019
anyone?
Re: Using " Area Boy" Song,Or Your Unique Way. Solve The Area (mr Shape) by ifada123: 3:52pm On Apr 22, 2019
should i bring solution?
Re: Using " Area Boy" Song,Or Your Unique Way. Solve The Area (mr Shape) by Martinez39(m): 4:18pm On Apr 22, 2019
The area is 2 units².

Cc. Ifada123
Re: Using " Area Boy" Song,Or Your Unique Way. Solve The Area (mr Shape) by ifada123: 4:58pm On Apr 22, 2019
Martinez39:
The area is 2 units².

Cc. Ifada123
u are very correct, show workings so that people can learn from u
Re: Using " Area Boy" Song,Or Your Unique Way. Solve The Area (mr Shape) by Martinez39(m): 5:03pm On Apr 22, 2019
ifada123:
u are very correct, show workings so that people can learn from u
I don't know basic geometry like you so I used algebra and calculus. My working is long and involves differentiation. No vex. grin. Show your workings sir.
Re: Using " Area Boy" Song,Or Your Unique Way. Solve The Area (mr Shape) by ifada123: 6:41pm On Apr 22, 2019
Martinez39:
I don't know basic geometry like you so I used algebra and calculus. My working is long and involves differentiation. No vex. grin. Show your workings sir.
ok sir, i will bring it soon
Re: Using " Area Boy" Song,Or Your Unique Way. Solve The Area (mr Shape) by ifada123: 7:07am On Apr 23, 2019
The radius of an inscribed circle is the area divided by the semi perimeter
Radius of small circle =(0.5×4x3)/(0.5×12)
Radius of smaller circle=1/1=1
Radius of big circle = (0.5×8×3)/(0.5×18)=12/9=4/3
Base of shaded triangle =8-2small radius=8-2=6unit
Height =3-1 smal radius-1 big radius
H=3-1-4/3=2/3unit
Area of shaded =0.5×6×2/3=2unit^2
I have provided solution
@martinez39

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Re: Using " Area Boy" Song,Or Your Unique Way. Solve The Area (mr Shape) by ifada123: 7:41am On Apr 23, 2019
SOLVED SOLVED SOLVED

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