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laila [671]
3 years ago
5

Find the radius! Surface Area = 1017.36 yd? EEN 1 radius =

Mathematics
2 answers:
Dovator [93]3 years ago
5 0

Answer:

9 yd

Step-by-step explanation:

SA = 4 pi r²

1017.36 = 4 × 22/7 × r²

r² = 1017.36 × 7/88

r = 9 yd

hichkok12 [17]3 years ago
3 0

Known :

Sa = 1017.36 yd²

Asked :

r = ...?

Answer :

Sa = 4πr²

1017.36 = 4 × 3.14 × r²

1017.36 = 12.56 r²

r² = 1017.36 ÷ 12.56

r² = 81

r = √81

r = <u>9</u><u> </u><u>yd</u>

So, the radius is 9 yd (D)

<em>Hope </em><em>it </em><em>helpful </em><em>and </em><em>useful </em><em>:</em><em>)</em>

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