To find: The exact circumference of the circle with diameter 20 inches and approximate the circumference.

illusiia 2020-10-23 Answered
To find: The exact circumference of the circle with diameter 20 inches and approximate the circumference.
You can still ask an expert for help

Expert Community at Your Service

  • Live experts 24/7
  • Questions are typically answered in as fast as 30 minutes
  • Personalized clear answers
Learn more

Solve your problem for the price of one coffee

  • Available 24/7
  • Math expert for every subject
  • Pay only if we can solve it
Ask Question

Expert Answer

Margot Mill
Answered 2020-10-24 Author has 106 answers
Definition:
Convert decimal fractions to integers.
The decimals point in the product is placed so that the number of decimal places in the product is equal to the sum of the number decimal places in the factors.
Radius of the circle is half the diameter of the circle.
Circumference of the circle is 2πr
The value of πris3.14
Calculation:
Radius, r=10 inches
Circumference of the circle is 2πr
Change r=10andπ=3.142πr
2(3.14)(10)
203.14
Based on the definition,
Multiply the decimals as through they are whole numbers.
20314=6280
The decimals point in the product is placed so that the number of decimal places in the product is equal to the sum of the number decimal places in the factors.
The number decimal places in the factors is 2.
So, place decimal point from two number from right.
62.80
On rounding off,
62.80 is taken as 63
Answer: Circumference of the circle is 63 meters
Not exactly what you’re looking for?
Ask My Question

Expert Community at Your Service

  • Live experts 24/7
  • Questions are typically answered in as fast as 30 minutes
  • Personalized clear answers
Learn more