Question

The surface area of a piece of paper is 770 cm2. Use the fact that 10 mm = 1 cm to convert this area to mm2. Give your answer as a number. Do not type the units in the space below.

Answer 1

Answer:

770 cm² = 770 × 1cm × 1cm

= 770 × 10mm × 10mm

= 77000 mm²

Answer 2

Answer:

770 cm² = 770 × 1cm x 1cm

= 770 x 10mm x 10mm

= 77000 mm²