Outer rectangle (whole towel) = 100 cm × 70 cm.<br>
The border is 6 cm wide, so the inner rectangle is narrower by 12 cm on each dimension.<br><br>
&bull; Outer area = 100 × 70 = 7000 cm&sup2;<br>
&bull; Inner area = (100 − 12) × (70 − 12) = 88 × 58 = 5104 cm&sup2;<br>
&bull; Area of border = 7000 − 5104 = 1896 cm&sup2;<br><br>
Final Answer: 1896 cm&sup2;