Multiple choice

David has a square poster of area 256 cm2. He orders for the enlargement of the poster with scale factor of 2. What will be the length of sides of the poster?

  1. 16 cm

  2. 24 cm

  3. 32 cm

  4. 40 cm
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The area of the square is 256 cm^2, so the original side length is sqrt(256) = 16 cm. Enlarging by a scale factor of 2 means the new side length is 16 * 2 = 32 cm.

AI explanation

The original square poster has an area of 256 cm2, so its side length is the square root of 256, which is 16 cm. Applying an enlargement scale factor of 2 to the side length gives the new length as 16 times 2. The result is 32 cm.

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