40 pts please help! Find the circumference and area of a circle with a diameter of 7cm. Round your answers to the hundredth. a. C = 21.98cm and A = 38.47cm squared b. C = 21.98cm and A = 153.86cm squared c. C = 43.96cm and A = 38.47cm squared d. C = 43.96cm and A = 153.86cm squared

2 answers
Question:

40 pts please help!
Find the circumference and area of a circle with a diameter of 7cm. Round your answers to the hundredth.
a. C = 21.98cm and A = 38.47cm squared
b. C = 21.98cm and A = 153.86cm squared
c. C = 43.96cm and A = 38.47cm squared
d. C = 43.96cm and A = 153.86cm squared

Answers

Answer:a.Step-by-step explanation:diameter 7cm radius 3.5cmarea =πr² =22/7* 3.5² =38.47cm²circumference=πd =22/7* 7 =22cm

Answer:a. C = 21.98cm and A = 38.47cm squaredStep-by-step explanation:Diameter is twice the radius. Therefore radius, r, is 3.5cm.Circumference = 2πr =2π(3.5)=7π=21.98cmArea=πr²=π(3.5²)=12.25π=38.47cm²

Similar Solved Questions

1 answer

Emily’s vacuum cleaner has a power rating of 200 watts. If the vacuum cleaner does 360,000 joules of work, how long did Emily spend vacuuming?

Emily’s vacuum cleaner has a power rating of 200 watts. If the vacuum cleaner does 360,000 joules of work, how long did Emily spend vacuuming?...
1 answer

A 150 km trip was covered by a motorcycle going at an average speed of 75 km/h, by a bus doing 60 km/h, by a truck doing 50 km/h, and by a bicycle doing 20 km/h. What is the constant of variation?

A 150 km trip was covered by a motorcycle going at an average speed of 75 km/h, by a bus doing 60 km/h, by a truck doing 50 km/h, and by a bicycle doing 20 km/h. What is the constant of variation?...
1 answer

Thinking during adolescence becomes ________ abstract and _______ complex, and these changes affect how they understand social relationships and solve problems

Thinking during adolescence becomes ________ abstract and _______ complex, and these changes affect how they understand social relationships and solve problems...
2 answers

A garden hose has a radius of 0.0120 m, and water comes out at a speed of 4.88 m/s. How much time does it take to fill up a kids swimming pool with a volume of 3.88 m^3

A garden hose has a radius of 0.0120 m, and water comes out at a speed of 4.88 m/s. How much time does it take to fill up a kids swimming pool with a volume of 3.88 m^3...
1 answer

¿Qué significa el adverbio en esta oración? Él hace la tarea completamente. - always poorly never easily always often happily correctly completely slowly quickly​

¿Qué significa el adverbio en esta oración? Él hace la tarea completamente. - always poorly never easily always often happily correctly completely slowly quickly​...
1 answer

Which of these are animal adaptations that help animals live in the deciduous forest biome? Select all that apply. little feet for snow hibernation hard outer skin to reduce loss of water round builds

Which of these are animal adaptations that help animals live in the deciduous forest biome? Select all that apply. little feet for snow hibernation hard outer skin to reduce loss of water round builds...
2 answers

How did the colonist react to the tea act?​

how did the colonist react to the tea act?​...
2 answers

Plz help me help me i need help badly

plz help me help me i need help badly...
1 answer

15-[14/(15-8)+13-14]• 10

15-[14/(15-8)+13-14]• 10...
1 answer

Separation of ________ occurs in anaphase ii of meiosis.

Separation of ________ occurs in anaphase ii of meiosis....
1 answer

Compare and contrast the applications and benefits of circle graphs and bar graphs. please explan i will give 50 points

Compare and contrast the applications and benefits of circle graphs and bar graphs. please explan i will give 50 points...
1 answer

Which event occurs in meiosis, but not mitosis? A. Homologous chromosomes are divided among daughter cells. B. Daughter cells form with the same genetic information as the parent cells. C. A spindle apparatus forms to move chromosomes across the cell. D. Homologous chromosomes fuse together to reduce the chromosome number by one half.

Which event occurs in meiosis, but not mitosis? A. Homologous chromosomes are divided among daughter cells. B. Daughter cells form with the same genetic information as the parent cells. C. A spindle apparatus forms to move chromosomes across the cell. D. Homologous chromosomes fuse together to reduc...
1 answer

What is the x in 5x+4x+45=180

What is the x in 5x+4x+45=180...
2 answers

How they different plz help

How they different plz help...
2 answers

What was the one reason the federalist supported ratification of the US Constitution

What was the one reason the federalist supported ratification of the US Constitution...
2 answers

When did the medieval period start? (a random question) ​

When did the medieval period start? (a random question) ​...
2 answers

Sarah and Bryan went shopping and spent a total of $47.50 Brian spent $15.50 less than what Sarah's been how much did Brian spend

Sarah and Bryan went shopping and spent a total of $47.50 Brian spent $15.50 less than what Sarah's been how much did Brian spend...
1 answer

A diver’s final score is 77.7. What is the degree of difficulty of the dive?

A diver’s final score is 77.7. What is the degree of difficulty of the dive?...
1 answer

This nation has given Australia its greatest economic boost through its purchase of Australia's natural gas. United States China Japan New Zealand

This nation has given Australia its greatest economic boost through its purchase of Australia's natural gas. United States China Japan New Zealand...
1 answer

In recent times, "currency" was a little over 50 percent of the M1 and "___________" were a little less than 50% of the M1.a. money market accountsb. checkable deposits c. savings depositsd. small time deposits

In recent times, "currency" was a little over 50 percent of the M1 and "___________" were a little less than 50% of the M1.a. money market accountsb. checkable deposits c. savings depositsd. small time deposits...

-- 0.014596--