vi

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Phổ biến Word Problems >

circle's bán kính is 23 millimeters. What is the circle's area? Use 3.14 or a calculator button for pi and provide an answer accurate to the nearest tenth.

Lời Giải

c i rc l e^{'} s r a d i u s i s 23 mi ll im e t ers . Wha t i s t h e c i rc l e^{'} s a re a ? U se 3.14 or a c a l c u l a t or b u tt o n f or p i an d 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 t e n t h .

Lời Giải

a re a : 529 π m m^{2}

+1

Số thập phân

1661.90251 \dots

Các bước giải pháp

Given:

r a d i u s : 23 mm

Diện tích hình tròn đã cho

r = 23 : A = 529 π

a re a : 529 π m m^{2}

Ví dụ phổ biến

Twice the sum of a number and 4 is less than 12 The perimeter of a rectangular painting is 270 cm. If the length of the painting is 82 cm, what is its width?Investing 5,000 in a savings account at 1% annual interest compounded quarterly will result in approximately how much money after 2 years After a 40% reduction, you purchase a new television for 234. What was the price of the television before the reduction?Jon opened a savings account and deposited 1,461.00. The account earns 9.88% interest, compounded quarterly. If he wants to use the money to buy a new bicycle in 3 years, how much will he be able to spend on the bike?