answersLogoWhite

0


Best Answer

Given: Circle diameter 4

Sought Area of circle Pi * r2 =A (Pi = 3.14159...)

r = d/2 >> r = 2

r2 = 4

3.14159 * 4 = 12,56636...

With four significant figures (which is three greater than the diameter of the problem and therefore too great). 12,57 square meters (the diameter should have been written 4,000 for this to be true)

With a single significant figure (like the resolution of the diameter in the problem): 1 * 10 m2 (had to write it that way so that there would be no confusion as to trailing zeros being significant or not)

User Avatar

Wiki User

12y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is the area of a circle with a diameter of 4 meters?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

The area of a circle 6 meters in diameter exceeds the combined areas of a circle 4 meters in diameter and a circle 2 meters in diameter by how many square meters?

The area of a circle with 6 meters diameter is 9xpi square meters. The area of circles with 4 meters diameter and 2 meters diameter are 4xpi and 1xpi square meters respectively. The combined area is 5xpi square meters. Thus the area 6 diameter circle exceeds the combined area by (9-5)xpi= 4xpi square meters. Substituting the value of pi as 3. 14, the exceeding area is 12. 56 square meters.


How many squre meters in a circle 3 meters in diameter?

Area of a circle with diameter 'D' meters = (Pi x D squared) / 4 Square meters Therefore, Area=(3.14x3x3)/4=7.065 Sqm.


What is the area of a circle if the diameter is 4 meters?

Using 3.14 as Pi the area of circle is: 12.56


What is the area of a circle with a diameter of 8 meters use 3.14 for?

The radius of the circle is half of the diameter, so it is 4 meters. To find the area of the circle, we can use the formula A = πr^2. Substituting the value of the radius, the area of the circle is therefore A = 3.14 * (4)^2 = 3.14 * 16 = 50.24 square meters.


What is the area of a circle if the diameter is 6 meters?

Area = 1/4*Pi*d2 = 0.25*3.14*62 = about 28.26m2


What is the area of a circle with a diameter of 4 inches?

The area of a circle with a diameter of 4 inches is: 12.57 square inches.


Area of circle with diameter?

Area of a circle = (1/4) x (pi) x (square of the diameter)


How many square meters are there in a circle 6 meters in diameter?

Circle area = 3.14 x diam 2 / 4 = 3.14 x 6 x 6 / 4 = 3.14 x 9 =28.26 sq meters


What is the area of a circle if the diameter is 4 cm in hectometers?

The area of a circle (in square hectometers) if the diameter is 4 cm is: 0.001257 hectometers2


What is the area of a circle with a diameter of 24 meters use 3.14?

Area = 1/4*Pi*d2 = 0.25*3.14*242 = about 452.16m2


What is the area of a circle of 8 meters?

A circle with a radius of 4 meters has an area of 50.27 square meters.


The area of a circle is 12.56 square centimeters. What is the circle's diameter?

Its diameter is about 4 cm rounded