When string f is stretched out, the length is 8 centimeters longer than string G. Drag numbers to complete the tape diagram and answer in statement.

The numbers are 8,11,19,22,27,30

String F _
String G_{8cm}
The length of string F is __ centimeter

If m∠abc = 70°, what is m∠abd? justify your reasoning.  using the addition property of equality, 40 + 70 = 110, so m∠abd = 110°.  using the subtraction property of equality, 70 − 30 = 40, so m∠abd = 30°.  using the angle addition postulate, 40 + m∠abd = 70. so, m∠abd = 30° using the subtraction property of equality.  using the angle addition postulate, 40 + 70 = m∠abd. so, m∠abd = 110° using the addition property of equality.