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 2 years ago
] The radius of a circle is multiplied by 10. Its area is _____ times bigger than the original circle.
 2 years ago
] The radius of a circle is multiplied by 10. Its area is _____ times bigger than the original circle.

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rebecca1233
 2 years ago
Best ResponseYou've already chosen the best response.0@Mertsj Can you guide me please

Mertsj
 2 years ago
Best ResponseYou've already chosen the best response.1Lets make two circles. Let the radius of the first one be 1 and the radius of the second one be 10.

Mertsj
 2 years ago
Best ResponseYou've already chosen the best response.1What is the area of the first circle? Just leave your answer in terms of pi.

Mertsj
 2 years ago
Best ResponseYou've already chosen the best response.1What is the area of the second circle? Again, leave your answer in terms of pi.

rebecca1233
 2 years ago
Best ResponseYou've already chosen the best response.0but thats not what its asking for so the answer is 10

Mertsj
 2 years ago
Best ResponseYou've already chosen the best response.1No, sweetheart. Just answer my questions. I'm trying to help you understand so you don't have to do so much work on the next problem you have that is similar to this one.

rebecca1233
 2 years ago
Best ResponseYou've already chosen the best response.0so the first one is 1

rebecca1233
 2 years ago
Best ResponseYou've already chosen the best response.0wait do i just do 10*10 cause its 10 times bigger that will give me 100

Mertsj
 2 years ago
Best ResponseYou've already chosen the best response.1What is the area of the second circle? Don't use 3.14. Just leave your answer in terms of pi

rebecca1233
 2 years ago
Best ResponseYou've already chosen the best response.0alright so what next

Mertsj
 2 years ago
Best ResponseYou've already chosen the best response.1So do you see that to find how many times bigger the second circle is we should divide the area of the second circle by the area of the first circle?

rebecca1233
 2 years ago
Best ResponseYou've already chosen the best response.0so the area of the first circle is 1

Mertsj
 2 years ago
Best ResponseYou've already chosen the best response.1Please look at the drawing I made. For the little circle, it says A = what?

Mertsj
 2 years ago
Best ResponseYou've already chosen the best response.1And the area of the big circle is what?

Mertsj
 2 years ago
Best ResponseYou've already chosen the best response.1And what is 100 pi divided by pi ?

rebecca1233
 2 years ago
Best ResponseYou've already chosen the best response.0when i divide a 100 by pie i get a decimal

Mertsj
 2 years ago
Best ResponseYou've already chosen the best response.1Do you understand so far because here is the important part which will save you work in the future?

rebecca1233
 2 years ago
Best ResponseYou've already chosen the best response.0yes. i get it :) Thanks. can you help me with a few more questions im stuck on

Mertsj
 2 years ago
Best ResponseYou've already chosen the best response.1Wait. I want to teach you the general principle of the problem we just did.

Mertsj
 2 years ago
Best ResponseYou've already chosen the best response.1In finding the area of a circle, what do you do with the radius?

Mertsj
 2 years ago
Best ResponseYou've already chosen the best response.1You square the radius don't you?

Mertsj
 2 years ago
Best ResponseYou've already chosen the best response.1So, if we make the radius 10 times bigger and then square it, since 10 squared is 100, the new circle will be 100 times bigger. Do you understand that?
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