Find the surface area of a sphere if a hemisphere with the same radius has a surface area of 69pi cm2

138picm2

Step-by-step explanation:

An hemisphere is half of a sphere. This means a sphere is twice an hemisphere .

Surface area of sphere of same radius = twice surface area of hemisphere

Therefore

Surface area of sphere = 2 * 69

= 138 pi cm2

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step-by-step explanation:

answer: 2x + 2 − 2 = 10 − 2; subtraction property of equality

step-by-step explanation: