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Mathematics 15 Online
OpenStudy (anonymous):

The minute hand on a clock is 9.5cm long what area will this hand sweep out in: i One hour ii 30 Minutes iii 4o minutes please help i really need it

OpenStudy (anonymous):

OK, I think I understand the question

OpenStudy (anonymous):

a clock is a circle so to find the area swept in 1 hour... pi*r^2

OpenStudy (anonymous):

plzz help i gtg in 4mins T^T

OpenStudy (anonymous):

so in your problem, it will be pi*9.5^2

OpenStudy (anonymous):

un hun

OpenStudy (anonymous):

for 30 minutes, it will be 1/30 and 40 minutes it is 1/40

OpenStudy (anonymous):

what do you get for the area in one hour?

OpenStudy (anonymous):

in i hr isss

OpenStudy (anonymous):

pi * 9.5^2 is approximately 283.53 cm

OpenStudy (anonymous):

can you do the others now?

OpenStudy (anonymous):

so you would have 283.53/30*pi and 283.53/40*pi

OpenStudy (anonymous):

/ = devide by 30?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

= 9.45?

OpenStudy (anonymous):

for what one?

OpenStudy (anonymous):

firs t

OpenStudy (anonymous):

i get it

OpenStudy (anonymous):

thank you sooo much :D

OpenStudy (anonymous):

so on your calculator, you would put it in as (283.53/30) * pi

OpenStudy (anonymous):

yah

OpenStudy (anonymous):

i gtg really but thank you so muvh for helping meeee

OpenStudy (anonymous):

ok, tag me if I am on and you need help again :)

OpenStudy (anonymous):

:D

OpenStudy (anonymous):

ta

OpenStudy (anonymous):

oh, and don't forget to close the question as well

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