Observatory's 81915

In our city, they decided to reconstruct the observatory's dome and cover it with sheet metal. At least how many square meters of sheet metal will they need if the dome is in the shape of a hemisphere with a diameter of 6m

Correct answer:

S =  56.55 m2

Step-by-step explanation:

D=6 m r=D/2=6/2=3 m  S1=4π r2=4 3.1416 32113.0973 m2  S=S1/2=113.0973/2=56.55 m2

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

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   video2

Related math problems and questions: