Mathematics
Junior High
Solved
想問這題 謝謝🙏
)如圖,圓與x軸、y軸交於A、B、C三點,已
知A、B兩點的坐標分別是(18,0)、(0,-12),且
圓心O在x軸上,則圓的面積是多少?
(C)144元 (D)169元
(A)100元 (B)121 元
(B)121元
A
(-180)
O₁
C (0.12)
O
-X
B(0.121
Answers
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所以面積為
πr² = 169π