Entry Exam Category: High School Equivalency Exams
Course: HiSET
Exam: HiSET Math Practice Test
Practice Question
An irrigation pivot makes a circle with a radius of about 400 meters. Which of the following values is closest to the area, in square meters, of the circle?
Answer Choices
- A: 1300
- B: 2500
- C: 160000
- D: 502700
- E: 1579100
Correct Answer: D
Rationale: Area of a circle = πr². For r = 400, area ≈ 3.1416 × 400² = 3.1416 × 160000 ≈ 502656. Closest option is 502700. Others: 1300, 2500 too small; 160000 underestimates; 1579100 ≈ π × 400² × 3.125, too large.