total surface area of spearh is 98.56 cm2 find its diameter
Answers
Answered by
2
Total surface area of a sphere = 4π r²
Given, area 4π r² = 98.56 cm² {let π = 22/7}
4 × 22/7 × r² = 98.56
r² = 98.56 × 7/22 × 1/4
r² = 689.92
r = √689.92
r = 2.8 cm
Therefore, Radius of the sphere = 2.8 cm
Given, area 4π r² = 98.56 cm² {let π = 22/7}
4 × 22/7 × r² = 98.56
r² = 98.56 × 7/22 × 1/4
r² = 689.92
r = √689.92
r = 2.8 cm
Therefore, Radius of the sphere = 2.8 cm
Similar questions