State PCS PYQPrelims 2022

BPSC – Combined Competitive Examination · প্রশ্ন 89

The diagonals of a rhombus are 10 cm and 24 cm. Its perimeter is:

  1. 52 cm
  2. 56 cm
  3. 60 cm
  4. 48 cm
  5. None of the above / More than one of the above
উত্তর দেখান ও ব্যাখ্যা

উত্তর: (A) 52 cm

ব্যাখ্যা

Diagonals bisect at right angles: side = √(5² + 12²) = 13 cm.

  • (A) সঠিক

    Correct: side = √(5² + 12²) = 13 cm; perimeter = 52 cm.

  • (B) ভুল

    Wrong: side is 13, not 14.

  • (C) ভুল

    Wrong: incorrect.

  • (D) ভুল

    Wrong: incorrect.

  • (E) ভুল

    Wrong: only one of the options A–D is correct.