A rope makes 70 rounds of the circumference of a cylinder whose radius of the base is 14 cm .How many times can it go round a cylinder with radius 20 cms
Answers
Answered by
1
Make an equation as below:
Length of rope = a
Circumference of 1st cylinder's base = 2 x pie x 14.
Circumference of 2nd cylinder' base = 2 x pie x 20.
Assume that the rope goes around 2nd cylinder T times.
You have 2 equations as below:
a = 140 x 2 x pie x 14
a = T x 2 x pie x 20.
Solve for a and T, you will get T = 98
Length of rope = a
Circumference of 1st cylinder's base = 2 x pie x 14.
Circumference of 2nd cylinder' base = 2 x pie x 20.
Assume that the rope goes around 2nd cylinder T times.
You have 2 equations as below:
a = 140 x 2 x pie x 14
a = T x 2 x pie x 20.
Solve for a and T, you will get T = 98
Answered by
11
Step-by-step explanation:
i hope you understand ☺️☺️☺️☺️☺️...... follow me
Attachments:
Similar questions