SQUARES, SQUARE ROOTS, CUBES & CUBE ROOTS

Which of the following is CORRECT?

Pak Ali has a plot of paddy field in a shape of a square. The area of the paddy field is 3 364 m². What is the length of the paddy field plot?

• 85 m

• 78 m

• 60 m

• 58 m

Which of the following is a perfect cube?

• 9

• 49

• 81

• 1 000

• 3.46

• 3.64

• 6.34

• 6.43

The diagram shows a cube-shaped gift box. The total surface area of the box is 48 600 mm². Find the length of the edge, in mm, of the gift box.

• 90 mm

• 80 mm

• 70 mm

• 60 mm

• 16.25

• 17.25

• 18.25

• 19.25

Which of the following is INCORRECT?