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Phổ biến Word Problems >

The diameter of a circle is 20 cm. Find its chu vi in terms of pipi.

Lời Giải

T h e d iam e t er o f a c i rc l e i s 20 c m . F in d i t s c i rc u m f ere n ce in t er m s o f p iπ .

Lời Giải

c i rc u m f ere n ce : 20 π c m

+1

Số thập phân

62.83185 \dots

Các bước giải pháp

Given:

d iam e t er : 20 c m

Chu vi hình tròn đã cho

d = 20 : C = 20 π

c i rc u m f ere n ce : 20 π c m

Ví dụ phổ biến

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