Question

PLEASE DONT GIVR THE ANSWER JUST TAKE ME STEP BY STEP UNTIL I --- GET THE ANSWER


A CIRCULAR GARDEN HAS A DIAMETER OF 12M BY HOW MUCH DOES TEH DIAMETER HAVE 2 BE INCREASED SO THAT THE AREA TRIPLES

Answer 1

I will attempt to help you

Answer 2

radius is (Diameter)/(2)
so for the area to be tripled i guess we can simply triply the radius

Answer 3

So area of circle: πr2

Diameter: 12 so Radius :6m

The area we have now: π(6)^2 = 113.1m^2

area we need = 113.1m^2 x 3 = 339.2

Answer 4

yea i got that so far

Answer 5

I'm thinking :P

Answer 6

hmm

Answer 7

πr2 = 339.2
r^2 = 339.3/pi

Answer 8

thats what i was doing jus now =)

Answer 9

r^2 = 108 (im rounding the numbers :P)
r = 10.4

Answer 10

YAY I ALSO GOT THAT but the asnwers say 8.8m

Answer 11

darn. are you sure you wrote the question right?

Answer 12

lets plug it in and see if it is tripled

Answer 13

yea im sure bro

Answer 14

OH I GET WHY. Because you have to say how much it increases by

Answer 15

?

Answer 16

Radius now is 10.4 for diameter is 20.8.

Before the diameter was 12.

Answer 17

*so diameter is 20.8

Answer 18

and bak 2 our andwer 10.4

Answer 19

oh never mind

Answer 20

whoopdedoo

Answer 21

whait how dod u get it agiin sry

Answer 22

20.8 - 12 =

Answer 23

8.8 =D

Answer 24

YEYYYYYYYYYYYY WE DID IT I GOT IT 2 THX BROOOOOO

Answer 25

I'm a girl but no problem=)

Answer 26

OH sry

Answer 27

wat grade?

Answer 28

11 advanced functions

Answer 29

wow im just in grade 9

Answer 30

where u from

Answer 31

Canada, hby?

Answer 32

me 2

Answer 33

hudson bay?

Answer 34

Grade 9 math can be kind of confusing since it's the first year of highschool and everyone learned different things from different schools . =)

Answer 35

my school's in ontario

Answer 36

yea thx 4 ur help

Answer 37

no problem

Answer 38

bye

Answer 39

byebye lol

Answer 40

\[\frac{A_{2}}{A_{1}}=\frac{\pi r_{2}^{2}}{\pi r_{1}^{2}}\]\[3=\frac{\pi r_{2}^{2}}{\pi 6^{2}}=\frac{r_{2}^{2}}{36}\]etc.