The circumference of two concentric circles forming a ring are 88cm and 66cm respectively.The width of ring is
Answers
Answered by
2
width of ring=radius of outer circle-radius of inner circle .
r of 1 circle=2*pi*r=88
r=88*7/44=14cm of radius
r of 2 circle =2*pi*r =66
r=66*7/44=21/2 width of ring=14-21/2=7/2=3.5cm
r of 1 circle=2*pi*r=88
r=88*7/44=14cm of radius
r of 2 circle =2*pi*r =66
r=66*7/44=21/2 width of ring=14-21/2=7/2=3.5cm
Answered by
4
Answer:
Step-by-step explanation:
Solution :-
Circumference of outer circle, 2πr₁ = 88 cm
⇒ r₁ = 88 × 7/2 × 22 = 14 cm
Circumference of inner circle, 2πr₂ = 66 cm
⇒ r₂ = 66 × 7/2 × 22 = 21/2 = 10.5 cm
Width of the ring = r₁ - r₂
Width of the ring = (14 - 10.5) cm
Width of the ring = 3.5 cm
Hence, the width of ring is 3.5 cm.
Similar questions