Question

The radius of a circle is 98mm. What is the area of the circle right your answer to the hundreds place use 3.14 for pi

Answer 1

If the area of a circle is 28.26 cm² what is the radius of the circle?

Answer 2

Complete the table by finding the circumference and area of a circle with a radius of 279 inches substitute 3.14 for pi express your answers to the hundredths place

Answer 3

The area of a circle is calculated using the formula A = πr^2, where r is the radius of the circle and π is a constant approximately equal to 3.14.

Given that the radius of the circle is 98mm, we can substitute this value into the formula:

A = 3.14 * (98)^2
A = 3.14 * 9604
A = 30154.56 mm^2

Rounded to the hundreds place, the area of the circle is equal to 30,154.56 mm^2.

Answer 4

The area of a circle is given by the formula A = πr^2, where A is the area, r is the radius, and π is approximately 3.14.

Given that the area of the circle is 28.26 cm², we can set up the equation as follows:

28.26 = 3.14 * r^2

To solve for the radius (r), we first divide both sides by 3.14:

r^2 = 28.26 / 3.14
r^2 = 9

Taking the square root of both sides to solve for r, we get:

r = √9
r = 3

Therefore, the radius of the circle is 3 cm.

Answer 5

Given that the radius of the circle is 279 inches, we can use the formulas for circumference and area:

Circumference = 2πr
Area = πr^2

Substitute π = 3.14 and r = 279 into the formulas to find the circumference and area:

Circumference = 2 * 3.14 * 279
Circumference = 1750.44 inches

Area = 3.14 * 279^2
Area = 3.14 * 77841
Area = 244391.94 square inches

Therefore, for a circle with a radius of 279 inches, the circumference is 1750.44 inches and the area is 244391.94 square inches, rounded to the hundredths place.