The diameter of a circle is 26 cm. Find its area to the nearest whole number
The radius of a circle is half the diameter, so the radius of this circle is 26/2 = 13 cm.
The area of a circle is given by the formula A = πr^2, where r is the radius.
Plugging in the values, we get:
A = π(13)^2
A = π(169)
A ≈ 530.93
Rounded to the nearest whole number, the area of the circle is 531 square centimeters.