ultrafire820 ultrafire820
  • 13-02-2022
  • Mathematics
contestada

The area of a circle is 30.8m2.
Find the length of the diameter rounded to 1 DP.

Respuesta :

saltedpasta
saltedpasta saltedpasta
  • 13-02-2022
Area of a circle = pi • r^2

We need to isolate for r.

A/pi = r^2

r = sqrt(A/pi)

r = sqrt(30.8/pi)

r = 3.1311251164

Diameter = 2r

Diameter = 6.26225023

Diameter = 6.3 m
Answer Link

Otras preguntas

What weight of water is displaced by a 100-ton floating ship? What is the buoyant force that acts on this ship?
What is 20/15 simplified?
What is 21(2-x)+12x=44? How do I do that? Help!
What is 21(2-x)+12x=44? How do I do that? Help!
how do you turn 89,200,000,000 into scientific notation form
Please help this is urgent! :(Emma is 3 times as old as Tara.In another 7 years Emma will be twice as old as Tara will be.Write at least one question and use al
how do I write the sum of 5.815 + 6.021 as a sum of two mixed numbers?
Sid wrote 541,309 on his paper. Using numbers and words,explain how the number would change if he switched the digits in the hundred thousands and tens places
your dog eats 7/8 lb of dog food in 4 meals how much does your dog eat per meal
one half of a nmber is 8 less than the number itself translated