Question

Mr.Atkinson wants to increase her circular garden by doubling the diameter. What effect will this have on the area?

Answer 1

soo the answer 16

Answer 2

can you show me how you got dat in equation

Answer 3

Area1= pi*r1^2, where r1 is radius of circle before increase of diameter
Area2 = pi*(2*r1)^2, doubling diameter, doubles size of radius
Area2=pi*2^2*r1^2, bring the factor "2" outside the exponent
=4*pi*r1^2, since 2^2 is 4
=4*Area1, since Area1 = pi*r1^2
Thus, by doubling the diameter (r1), you double the radius (2*r1), which quadruples the initial Area (Area1).

Answer 4

YBARRAP can u write that in equation i cant have writing soo can u show it in numbers and the answer please

Answer 5

sorry - i made an error ybarrap is right - the radius iis doubled

the area is increased 4 times

pir^2 / pi (2r)^2 = r^2 / 4r^2 = 1 / 4

Answer 6

so its 1/4

Answer 7

well the ratio of smaller to larger is 1 / 4

thats the same as saying the larger one is 4 times bigger than the small (original) garden

Answer 8

so what is the answerrrrr

Answer 9

area increases 4 times

Answer 10

okayy im confused it says what effect will this have on the area can u show me work and answer instead of wordsssss

Answer 11

can u write it on the draw please

Answer 12

ybarrap has shown you the work - and so have i

Answer 13

ok - i'll try and draw it