Sign In Sign Up Ask an AI advisor

lwattsstudent

lwattsstudent

17.01.2022 •

Mathematics

If the circumference of a circle sheet is 154cm find its radius.Also find the area of the ctake R =22 by 7

Solved

Show answers

Ответ:

AquaNerd5706

17.01.2022

$circumference \: of \: a \: circle = 154 \\ 2\pi \: r = 154 \\ 2 \times \frac{22}{7} \times r = 154 \\ r = 98 \\ \\ \\ area \: of \: a \: triangle = \pi {r}^{2} \\ \frac{22}{7 } \times 98 \times 98 = 30184cm ^{2}$

Step-by-step explanation:

please mark me as brainlest

0,0(0 оценок)

Ответ:

katrinajernae7008

17.01.2022

The radius of circle is 24.5 cm.

The area of circle is 1886.5 cm².

Step-by-step explanation:

$\large{\tt{\purple{\underline{\underline{\pink{SOLUTION: -}}}}}}$

Finding the radius of circle by substituting the values in the formula :

$\star{\underline{\boxed{\tt{\purple{C_{(Circle)} = 2\pi r}}}}}$

$\pink\star$ C = circumference $\pink\star$ π = 22/7 $\pink\star$ r = radius

$\longrightarrow{\tt{C_{(Circle)} = 2\pi r}}$

$\longrightarrow{\tt{154 = 2 \times \dfrac{22}{7} \times r}}$

$\longrightarrow{\tt{154 = \dfrac{2 \times 22}{7} \times r}}$

$\longrightarrow{\tt{154 = \dfrac{44}{7} \times r}}$

$\longrightarrow{\tt{r = 154 \times \dfrac{7}{44}}}$

$\longrightarrow{\tt{r =\dfrac{154 \times 7}{44}}}$

$\longrightarrow{\tt{r =\dfrac{1078}{44}}}$

$\longrightarrow{\tt{r =24.5}}$

$\star{\underline{\boxed{\tt{\red{r =24.5 \: cm}}}}}$

Hence, the radius of circle is 24.5 cm.

$\begin{gathered}\end{gathered}$

Finding the area of circle by substituting the values in the formula :

$\star{\underline{\boxed{\tt{\purple{A_{(Circle)} = \pi{r}^{2} }}}}}$

$\pink\star$ A = area $\pink\star$ π = 22/7 $\pink\star$ r = radius

$\longrightarrow{\tt{A_{(Circle)} = \pi{r}^{2} }}$

$\longrightarrow{\tt{Area_{(Circle)} = \dfrac{22}{7} \times {(24.5)}^{2} }}$

${\longrightarrow{\tt{Area_{(Circle)} = \dfrac{22}{7} \times {(24.5 \times 24.5)}}}}$

${\longrightarrow{\tt{Area_{(Circle)} = \dfrac{22}{7} \times {(600.25)}}}}$

${\longrightarrow{\tt{Area_{(Circle)} = \dfrac{22}{7} \times 600.25}}}$

${\longrightarrow{\tt{Area_{(Circle)} = \dfrac{22}{\cancel{7}} \times \cancel{600.25}}}}$

${\longrightarrow{\tt{Area_{(Circle)} = 22 \times 85.75}}}$

${\longrightarrow{\tt{Area_{(Circle)} = 1886.5}}}$

$\star{\underline{\boxed{\tt{\red{Area_{(Circle)} = 1886.5 \: {cm}^{2}}}}}}$

Hence, the area of circle is 1886.5 cm².

$\rule{300}{2.5}$

0,0(0 оценок)

Ответ:

rrgehsh

28.10.2021

5.333333

Step-by-step explanation:

bc it can be predicted

0,0(0 оценок)

Ask your question to the AI advisor

Ai-bot is an expert in any field and is the perfect companion for reliable and useful answers and advice on a variety of topics, including science, history, technology, art, sports, health, culture and more.

Ask your question

More tips

G Goods and services Which TV is better - LCD or Plasma?...
S Sport How to Learn to Pull Up on Monkey Bars?...
L Leisure and Entertainment Scrapbooking: What is it and Why is it Becoming More Popular?...
C Computers and Internet Where did torrents.ru move to?...
B Business and Finance Understanding Cash Flow: What It Is and How It Works...
C Computers and Internet What Are Peers and Seeds in Torrenting?...
H Health and Medicine 10 Simple Techniques on How to Boost Your Mood...
G Goods and services How to Choose the Right High Chair for Your Baby?...
S Style and Beauty Learn how to tie a keffiyeh on your head like a pro...

Answers on questions: Mathematics

M Mathematics You have a recipe for coconut cookies. The recipe makes 20 cookies. You need 100 cookies for a bake sale. Increase the recipe proportionally to make 100 cookies. PLEASE...
M Mathematics In a study of the effect of cooling rate on the hardness of welded joints, 50 welds cooled at a rate of 10°c/s had an average rockwell (b) hardness of 91.1 and a standard...
M Mathematics In a survey, the planning value for the population proportion is . how large a sample should be taken to provide a confidence interval with a margin of error of ? round...
M Mathematics It takes a woodworker 30 hours to build a cabinet that sells for $660 in the store. the store owner wants to make a profit or at least $150 on each cabinet after paying...
M Mathematics Rectangular prism a is 6 feet × 3 feet × 2 feet. rectangular prism b is 2 feet × 4 feet × 4 feet. what is the surface area of a? square feet what is the surface area...
M Mathematics Which expression is equivalent to cos 120°?...
M Mathematics Arectangular plot 200m*150m plus three 3m wide roads along the length of the plot on either side and one in the middle roads there are shops. a. find the area covered...
M Mathematics Robert delivers papers every morning. on sundays he has to deliver 67 papers and on each of the other days he only has to deliver 39 papers. how many papers does robert...
M Mathematics Atrain traveled 216. the time it traveled in minutes is 6 more than twice the speed of the train. what is the speed and travel time....
M Mathematics a company provides bus trips to various events for adults and children. the company charges $15 for each adult and $8 for each child for a trip to an upcoming play. the...

S Sport S Society and Politics G Goods and services C Cities and Countries A Animals and plants L Legal consultation W Work and Career C Construction and repair H Health and Medicine D Dating, Love, Relationships H Horoscopes, Magic, Divination S Style and Beauty L Leisure and Entertainment S Science and Technology P Photography and Videography A Art and Culture O Other P Philosophy F Food and Cooking B Business and Finance T Travel and tourism F Family and Home A Auto and Moto

Show more

Full access

It will provide effective and fast learning by providing unlimited access to the knowledge base and receiving answers from experts and an AI advisor.

Subscribe

Ask an AI advisor a question

I want advice

ABOUT US

About us
Terms of use
Copyright
Privacy Policy
Cookie policy
Cookie preferences

HELP

Sign Up
FAQ
Security Center

App

Spanish Geography Health Engineering Arts Social Studies Advanced Placement (AP) German SAT History Computers and Technology Physics Chemistry Biology Law Mathematics World Languages French Business Medicine