The radius of sphere is measured to be 2.1±0.5 cm calculate it's surface area with error limit
Answers
Answered by
11
Answer:
55.4 ± 26.4cm²
Explanation:
Sphere is a perfect round geometrical object in three-dimensional space that is the surface of a completely round ball. Radius of sphere S = (2.1 +0.5) cm (Given)
Surface area of sphere = S = 4πr²
Therefore,
= 4π (2.1)²
= 55.4cm²
= ΔS/S = 2Δr/r→ ΔS = 2Δr/rS
= ΔS = 2×0.5×55.4/2.1
= 26.4cm²
= S =55.4 ± 26.4cm²
Therefore, the surface area with error limits is 55.4 ± 26.4cm²
Similar questions