A circle has a diameter of 46 centimeters.
A. 6,644 cm2
B. 72 cm2
C. 144 cm2
D. 1,661 cm2
Yes, D.
Yes, but I'm having trouble because I've done this question before and I got A but it was wrong. So I wanted to see if you could possibly help me.
To find the area of a circle, you can use the formula A = πr^2, where A represents the area and r represents the radius of the circle. Since the diameter is given, we can find the radius by dividing the diameter by 2.
Given that the diameter of the circle is 46 centimeters, the radius would be:
r = 46 cm / 2 = 23 cm
Now that we have the radius, we can use the formula A = πr^2 to find the area of the circle.
Substituting the value of the radius into the formula, we have:
A = π(23 cm)^2
Calculating the area:
A = 3.14 * (23 cm)^2
A = 3.14 * 529 cm^2
A ≈ 1661.06 cm^2
Therefore, the area of the circle with a diameter of 46 centimeters is approximately 1661.06 square centimeters.
Therefore, the correct answer is D. 1,661 cm^2.
So -- do you want to find the area?
A = pi * r^2
A = 3.14 * 23^2
What answer do you get now?