the circumference of two concentric rings are 132cm and 176cm.Find the width between the rings
Answers
Answered by
11
c1=132
2πr1=132
r1=132/2π
c2=2πr2
2πr2=176
r2=176/2π
width =r2-r1
=176/2π-132/2π
=(44×7)/2×22
=7cm
2πr1=132
r1=132/2π
c2=2πr2
2πr2=176
r2=176/2π
width =r2-r1
=176/2π-132/2π
=(44×7)/2×22
=7cm
Answered by
8
C1=132
C2=176
circumference=2πr
2πr=132. (solve it)
r1 = 21.
2πr = 176 (solve it ) then,we get
r2 = 28
to find it's differnce we
r2-r1
28-21 == 7
C2=176
circumference=2πr
2πr=132. (solve it)
r1 = 21.
2πr = 176 (solve it ) then,we get
r2 = 28
to find it's differnce we
r2-r1
28-21 == 7
Similar questions