Question

A gold smith has a 8.8m of gold wire with him. He has to make gold rings of 2cm radius. How many such rings can he make.

Answer 1

Gold smith has =8.8m = 880 cm
1 ring = 2cm
No of rings = 880/2
440 rings
Hope this answer helped you.
Mark me as brainliest and follow me
Thank you

Answer 2

Answer:

The number of gold rings can be made = 70

Step-by-step explanation:

Given,

Total length of gold wire = 8.8m

The radius of the gold ring = 2cm

To find,

The number of gold rings can be made

Recall the concept

Perimeter of a circle= 2πr, where 'r' is the radius of the circle.

Solution:

The length of the gold wire is required to make one gold ring = perimeter of the gold ring.

Since the radius of the gold ring = 2cm, the perimeter of the gold ring

= 2×π×2

= 4πcm

The perimeter of one gold ring =  4πcm

Length of the gold wire = 8.8m = 8.8×100cm = 880cm

Number of gold rings can be made = $\frac{880}{4\pi }$

= $\frac{880X7}{4X22}$

= 70

∴ The number of gold rings can be made = 70

#SPJ2