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 one year ago
The area of a regular octagon is 35 cm2. What is the area of a regular octagon with sides five times as long?
A. 625 cm2
B. 875 cm2
C. 175 cm2
D. 245 cm2
 one year ago
The area of a regular octagon is 35 cm2. What is the area of a regular octagon with sides five times as long? A. 625 cm2 B. 875 cm2 C. 175 cm2 D. 245 cm2

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Hero
 one year ago
Best ResponseYou've already chosen the best response.1Do you have the formulas for Area of a Polygon already?

ErinWeeks
 one year ago
Best ResponseYou've already chosen the best response.1no i dont ! could you tell me the area

ErinWeeks
 one year ago
Best ResponseYou've already chosen the best response.1what is PA? what would i put there?

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1Hint: Area of similar polygons are proportional to the square of the linear dimensions (such as a side). A polygon with a side 5 times as long has an area of 5^2=25 times the smaller polygon.

ErinWeeks
 one year ago
Best ResponseYou've already chosen the best response.1so it would be B , 875 ?

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1Sounds good to me. :)

Hero
 one year ago
Best ResponseYou've already chosen the best response.1I was just about to show her the long hard way of doing it.

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1Sorry @Hero for butting in. I think the question was on the proportionality of figures.

Hero
 one year ago
Best ResponseYou've already chosen the best response.1It was on Area of a Regular Polygon as well

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1It would definitely been beneficial to learn how to calculate the apothem and the length of the side given the area and number of sides. It would be a little long though.

Hero
 one year ago
Best ResponseYou've already chosen the best response.1Yes, I know. I just said that it was the long way. Good job on saving time.

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1Sorry pal for this time. Hope that won't happen again! :)
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