Question

Find the number of coin whose diameter is 1.5 and 0.2 thick if it is melted to form right circular cylinder of height 10 and diameter 4.5

Answer 1

Answer:

Each one of those coins is also a cylinder (just a very very short one), and its volume is 

V = πr²h = π(.75)²(.2) = 9π/80 cm³ 

The right circular cylinder has volume V = π(2.25)²(10) = 405π/8 cm³. 

Divide the larger cylinder's volume by the volume of each coin = (405π/8) / (9π/80) = 450 coins

Read more on Brainly.in - https://brainly.in/question/264598#readmore

Step-by-step explanation: