general math MCQ #134

The sector of a circle has radius of 21 cm and central angle 135o. Find its perimeter?

general math MCQ #134

  1. Question 1

    Q1. The sector of a circle has radius of 21 cm and central angle 135o. Find its perimeter?

    • A) 91.5 cm
    • B) 93.5 cm
    • C) 94.5 cm
    • D) 92.5 cm

    Answer: 91.5 cm

    Explanation: Arc length = (135/360) × 2π × 21 = 49.5 cm; perimeter = 49.5 + 2×21 = 91.5 cm.