From plasticine

Michael modeled from plasticine a 15 cm high pyramid with a rectangular base with the sides of the base a = 12 cm and b = 8 cm. From this pyramid, Janka modeled a rotating cone with a base diameter d = 10 cm. How tall was Janka's cone?

Correct answer:

h2 =  18.3346 cm

Step-by-step explanation:

a=12 cm b=8 cm h1=15 cm d=10 cm  r=d/2=10/2=5 cm  S1=a b=12 8=96 cm2  V1=31 S1 h1=31 96 15=480 cm3 V1 = V2  V2 = 31 π r2   h2  h2=π r23 V1=3.1416 523 480=18.3346 cm



Did you find an error or inaccuracy? Feel free to write us. Thank you!







Tips for related online calculators
Tip: Our volume units converter will help you convert volume units.

You need to know the following knowledge to solve this word math problem:


 
We encourage you to watch this tutorial video on this math problem: video1

Related math problems and questions: