Gerry Lim's answer to Lau's Primary 6 Maths Measurement Singapore question.
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
Circumference of circle = 2*pi*r
Distance covered by circumference of circle = 2*pi*r*15 = 2*pi*24*15
Length not covered by circle(the base of the circle does not touch the end of wall.) = r*2
So distance between X and Y = 2*pi*24*15 + 2*r
Distance covered by circumference of circle = 2*pi*r*15 = 2*pi*24*15
Length not covered by circle(the base of the circle does not touch the end of wall.) = r*2
So distance between X and Y = 2*pi*24*15 + 2*r
Date Posted:
2 years ago
360 Tutoring Program