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Q: In the centesimal system of angular measurement, 1 Circumference = ___________
  • A. 180 grads
  • B. 100 grads
  • C. 360 grads
  • D. 400 grads
Correct Answer: Option D - Centesimal system–An angle is measured in grades minutes and seconds. 1 right angle = 100 grades 1 grade = 100 minutes 1 minutes = 100 seconds. ∵ 1 circumference = 360º = 4 right angle ∴ Grade = 4 × 100 = 400 grade.
D. Centesimal system–An angle is measured in grades minutes and seconds. 1 right angle = 100 grades 1 grade = 100 minutes 1 minutes = 100 seconds. ∵ 1 circumference = 360º = 4 right angle ∴ Grade = 4 × 100 = 400 grade.

Explanations:

Centesimal system–An angle is measured in grades minutes and seconds. 1 right angle = 100 grades 1 grade = 100 minutes 1 minutes = 100 seconds. ∵ 1 circumference = 360º = 4 right angle ∴ Grade = 4 × 100 = 400 grade.