If a rectangle has length 10 cm10 \text{ cm}10 cm and width 5 cm5 \text{ cm}5 cm, what is its area in mm2\text{mm}^2mm2?
5000 mm25000 \text{ mm}^25000 mm2
50 mm250 \text{ mm}^250 mm2
500 mm2500 \text{ mm}^2500 mm2
50,000 mm250,000 \text{ mm}^250,000 mm2