vi

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Phổ biến Word Problems >

area The area of a circle is 4.5216 square inches. What is the circle's chu vi?

Lời Giải

a re a T h e a re a o f a c i rc l e i s 4.5216 s q u a re in c h es . Wha t i s t h e c i rc l e^{'} s c i rc u m f ere n ce ?

Lời Giải

c i rc u m f ere n ce : 7.54 in c h

Các bước giải pháp

Given:

a re a : 4.5216 in c h^{2}

Bán kính đường tròn đã cho

A re a = 4.5216 : r = 1.19969 \dots

Chu vi hình tròn đã cho

r = 1.19969 \dots : C = 7.53791 \dots

c i rc u m f ere n ce : 7.54 in c h

Ví dụ phổ biến

If a fair die is rolled 5 times, what is the probability, rounded to the nearest thousandth, of getting at most 2 fours?A principal 4800 of is invested at 3.25% interest, compounded annually. How much will the investment be worth after 8 years?Sound travels at a speed of approximately 1,085 feet per second. How far does sound travel in 13 seconds, expressed in khoa học notation?Santiago opened a savings account and deposited 3,000.00. The account earns 2% interest, compounded annually. If he wants to use the money to buy a new bicycle in 2 years, how much will he be able to spend on the bike?The sum of two numbers is 50.The larger number is 8 more than the smaller number. What are the numbers?