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Phổ biến Word Problems >

What is the length of the circle's đường kính (d) if the circle's area is approximately 440pi in 2 ? Provide an answer accurate to the nearest hundredth.

Lời Giải

Wha t i s t h e l e n g t h o f t h e c i rc l e^{'} s d iam e t er (d) i f t h e c i rc l e^{'} s a re a i s a pp ro x ima t e l y 440 π in 2 ? P ro v i d e an an s w er a cc u r a t e t o t h e n e a res t h u n d re d t h .

Lời Giải

d iam e t er : 2 \frac{2}{π}

+1

Số thập phân

1.59576 \dots

Các bước giải pháp

Given:

a re a : 2

Bán kính đường tròn đã cho

A re a = 2 : r = \frac{2}{π}

Đường kính hình tròn đã cho

r = \frac{2}{π} : d = 2 \frac{2}{π}

d iam e t er : 2 \frac{2}{π}

Ví dụ phổ biến

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