A company wants to manufacture 1000 hemispherical basins from a thin steel sheet. if the radius of each
basin is 21cm., find the area of steel sheet required to manufacture the above hemispherical basins?
Answers
Answer:
2,769,480 cm square
Step-by-step explanation:
curved surface area of sphere=2pie r square
=2*3.14*21*21 cm square
1 basin =2,769.48 cm square
1000 basin =2,769.48*1000
=2,769,480 cm square
Given,
Radius of the hemisphencal basin = 21cm
To find out,
Find the area of steel sheet required to manufacture the 1000 hemispherical basins.
Solution:
Surface area of a hemispherical basin = 2πr^2 = 2 × 22/7 ×21 ×21 = 2772
Therefore the area of the steel sheet required for one basm is 2772cm^2.
Total area of sheet required for 1000 hemispherical
basins = 2772 X1000
= 2772000 cm^2
= 277.2 m^2
Therefore the area of steel sheet required to manufacture the 1000 hemispherical basins is 277.2 square meters.