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Phổ biến Word Problems >

The chu vi of a circle is 8𝜋 kilometers. What is the area?

Lời Giải

T h e c i rc u m f ere n ce o f a c i rc l e i s 8​𝜋 ki l o m e t ers . Wha t i s t h e a re a ?

Lời Giải

a re a : 16 π k m^{2}

+1

Số thập phân

50.26548 \dots

Các bước giải pháp

Given:

c i rc u m f ere n ce : 8 π km

Bán kính đường tròn đã cho

C i rc u m f ere n ce = 8 π : r = 4

Diện tích hình tròn đã cho

r = 4 : A = 16 π

a re a : 16 π k m^{2}

Ví dụ phổ biến

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