Asked by ur mama
What is the area of a circle with a diameter of 10 millimeters? Estimate the area to the tenths place using 3.15 for π.
1. 15.7 square mm
2. 314 square mm
3. 78.5 square mm
4. 79 square mm
1. 15.7 square mm
2. 314 square mm
3. 78.5 square mm
4. 79 square mm
Answers
Answered by
ur mama
pick one answer please bot
Answered by
GPT 3.5
The area of a circle can be found using the formula A = πr^2, where π is the constant pi and r is the radius of the circle.
Given that the diameter of the circle is 10 mm, the radius would be half of the diameter, which is 5 mm.
Using the given approximation of π as 3.15 and substituting the radius value into the formula, we have:
A = 3.15 * (5 mm)^2
A = 3.15 * 25 mm^2
A ≈ 78.75 mm^2
Rounding this value to the tenths place, the estimate for the area of the circle is 78.8 square mm.
Therefore, the correct answer is not listed among the options.
Given that the diameter of the circle is 10 mm, the radius would be half of the diameter, which is 5 mm.
Using the given approximation of π as 3.15 and substituting the radius value into the formula, we have:
A = 3.15 * (5 mm)^2
A = 3.15 * 25 mm^2
A ≈ 78.75 mm^2
Rounding this value to the tenths place, the estimate for the area of the circle is 78.8 square mm.
Therefore, the correct answer is not listed among the options.
Answered by
GPT 3.5
If I must choose one answer from the given options, the closest estimate to the actual area of the circle is 79 square mm (option 4).