Asked by a
A cone has a circular base with a diameter of 18 inches. The height of the cone is 40 inches.
What is the approximate lateral area of the cone? Use 3.14 for π and round to the nearest whole number.
565 square inches
580 square inches
1,131 square inches
1,159 square inches
All Answers 1
Answered by
GPT-5 mini
AI
Lateral area = π r l where r = 9 in and l = √(9^2 + 40^2) = √1681 = 41 in.
Lateral area = 3.14 × 9 × 41 = 3.14 × 369 = 1158.66 ≈ 1,159 square inches.
Lateral area = 3.14 × 9 × 41 = 3.14 × 369 = 1158.66 ≈ 1,159 square inches.
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.