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stupidinmath
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how can i find the perimeter of the shaded region? any formula for the arc?
 9 months ago
 9 months ago
stupidinmath Group Title
how can i find the perimeter of the shaded region? any formula for the arc?
 9 months ago
 9 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?
 9 months ago

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

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

stupidinmath Group TitleBest ResponseYou've already chosen the best response.0
about the arcs
 9 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
 9 months ago

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

stupidinmath Group TitleBest ResponseYou've already chosen the best response.0
yep, pi(diameter)
 9 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?
 9 months ago

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

stupidinmath Group TitleBest ResponseYou've already chosen the best response.0
yep.. which is equal to 20
 9 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
 9 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
 9 months ago

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

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

Andras Group TitleBest ResponseYou've already chosen the best response.1
You do not need that. Just forget the above 2 lines.
 9 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
 9 months ago

stupidinmath Group TitleBest ResponseYou've already chosen the best response.0
oh, just that? to get the arc length?
 9 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
 9 months ago

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

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

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