Question

Can someone pretty please help me with this c:

Answer 1

do you mean 3 - the kite question?

Answer 2

all of them

Answer 3

well circumference = 2piR

Answer 4

not sur I got time for all of thm

lets start with the circumference
you have been given the equation above

so if r is doubled (i.e. becomes 2r) then what is th ecircumference?

Answer 5

1. the circumference is tripled by 3 because the equation for the circumference is 2πr and if you multiply r by three it multiplies the whole equation by three
2πr(3)=6πr which is the original equation multiplied by 3 so it the circumference is multiplied by a factor of 3

Answer 6

not tripled multiplied sorry

Answer 7

okay

Answer 8

or you can just wait until someone gives you the complete answer..

Answer 9

what is the equation for the AREA of a circle?

Answer 10

lol i just dont understand on the first 2 how to explain that but i get he already explained it

Answer 11

pir^2

Answer 12

so if r becomes 2r you get
pi (2r)^2

so what factor is the original area increased by?

Answer 13

3?

Answer 14

(2r)^2

is the same as
2r * 2r

how would you write that?

Answer 15

2(3) *2(3)

Answer 16

where did you get the 3 from? that is not correct

just simplify (2r)^2
or simplify 2r *2r

Answer 17

i dont know

Answer 18

so rearrange it like this

2*2 *r*r

what is 2*2
what is r*r

Answer 19

the area of a kite is pq/2 where p and q are the diagonal lengths
if you take 2 and 1 as p and q you would get 1 as your area
then if you doubled them to 2 and 4 your area would be 4
then you can do it one more time with 4 and 8 and you get your area to be 16
so each time you double the diagonals the area goes up by a factor of 4.

Answer 20

did you find you answer

Answer 21

thank you guys

Answer 22

yep and its nice to meat you how old are you im 12