Multiple choice

The area of a circle is 144.5 square cm. The area of a square is twice the area of the circle. What is the sum of the sides of the square?

  1. 38 cm.

  2. 36 cm.

  3. 32 cm.

  4. 34 cm.

  5. None of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Circle area = 144.5 cm², so square area = 2 × 144.5 = 289 cm². Side of square = √289 = 17 cm. Sum of four sides (perimeter) = 4 × 17 = 68 cm. However, the question asks for 'sum of the sides' which could mean perimeter (68 cm), but the correct answer is 34 cm, suggesting it may mean sum of two adjacent sides or there's an interpretation issue. Given the options, 34 cm is marked correct, which equals 2 × 17.

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