Two concentric circles form a ring. The inner and outer circumference of the ring is 22 cm and 44 cm respectively. Find the width of the ring. (π = 22/7)
Answers
Answered by
2
Answer:
nhi pta bro.... agr tujhe reply mil jaye toh mujhe bhi batana...ok na
Answered by
0
Answer:
Inner circumference of ring = 50
7
2
m
Outer circumference of ring = 75
7
3
m
To find:- Width of ring
Solution:-
Fomula for circumference = 2π×radius
Let the outer and inner radius of ring be R and r respectively.
∴ inner circumference of ring=50
7
2
m
⇒2πr=50
7
2
⇒2×
7
22
×r=50
7
2
⇒44r=352⇒r=8
∴ outer circumference of ring=75
7
3
m
⇒2πR=75
7
3
⇒2×
7
22
×R=75
7
3
⇒44R=528⇒R=12
Hence,
Width of ring = Inner circumference of ring - Outer circumference of ring = 12−8=4m
Hence the correct answer is 4m.
hope it helps you
please mark me as BRAINLIEST
Similar questions