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stupidinmath
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how can i find the perimeter of the shaded region? any formula for the arc?
 11 months ago
 11 months ago
stupidinmath Group Title
how can i find the perimeter of the shaded region? any formula for the arc?
 11 months ago
 11 months ago

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Andras Group TitleBest ResponseYou've already chosen the best response.1
This is very similar to the last question you asked. Where do you get stuck?
 11 months ago

stupidinmath Group TitleBest ResponseYou've already chosen the best response.0
formulas.. :
 11 months ago

stupidinmath Group TitleBest ResponseYou've already chosen the best response.0
i'm confused if all forulas are same or not
 11 months ago

stupidinmath Group TitleBest ResponseYou've already chosen the best response.0
about the arcs
 11 months ago

Andras Group TitleBest ResponseYou've already chosen the best response.1
I hope now you remember the formula for the perimeter of the circle
 11 months ago

Abhishek619 Group TitleBest ResponseYou've already chosen the best response.0
make use of symmetry..it's helpful
 11 months ago

stupidinmath Group TitleBest ResponseYou've already chosen the best response.0
yep, pi(diameter)
 11 months ago

Andras Group TitleBest ResponseYou've already chosen the best response.1
Yep that is right. What fraction of the circle is the arc you have here?
 11 months ago

Andras Group TitleBest ResponseYou've already chosen the best response.1
The other 2 sides are just str8 lines
 11 months ago

stupidinmath Group TitleBest ResponseYou've already chosen the best response.0
yep.. which is equal to 20
 11 months ago

Andras Group TitleBest ResponseYou've already chosen the best response.1
Can you find the solution now? You have written all the necessary information down already
 11 months ago

Andras Group TitleBest ResponseYou've already chosen the best response.1
pi(diameter) is correct for the circle but get used to 2pi(radius), that is a more common notation
 11 months ago

stupidinmath Group TitleBest ResponseYou've already chosen the best response.0
should i use the formul.. l+ 2(pi)(r)(theta/360)?
 11 months ago

stupidinmath Group TitleBest ResponseYou've already chosen the best response.0
i mean l= 2(pi)(r)(theta/360)?
 11 months ago

Andras Group TitleBest ResponseYou've already chosen the best response.1
You do not need that. Just forget the above 2 lines.
 11 months ago

Andras Group TitleBest ResponseYou've already chosen the best response.1
You need the perimeter of the circle: 2pi(radius) and the fraction 1/4
 11 months ago

stupidinmath Group TitleBest ResponseYou've already chosen the best response.0
oh, just that? to get the arc length?
 11 months ago

Andras Group TitleBest ResponseYou've already chosen the best response.1
That arc length has 1/4 of the perimeter of a full circle
 11 months ago

stupidinmath Group TitleBest ResponseYou've already chosen the best response.0
my answer is.. 35.71.
 11 months ago

stupidinmath Group TitleBest ResponseYou've already chosen the best response.0
thank you so much:)
 11 months ago

Andras Group TitleBest ResponseYou've already chosen the best response.1
Yep that is it
 11 months ago
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