cortezferrell1peccr1 cortezferrell1peccr1

29-08-2019
Mathematics

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CAN SOMEONE PLEASE HELP ME WITH THIS PROBLEM PLEASE

CAN SOMEONE PLEASE HELP ME WITH THIS PROBLEM PLEASE class=

Respuesta :

jimrgrant1 jimrgrant1

29-08-2019

Answer:

324π in²

Step-by-step explanation:

The surface area of a sphere is calculated as

A = 4πr² ← r is the radius

Here diameter = 18, hence r = 9, thus

A = 4π × 9² = 4π × 81 = 324π in²

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