2010015005

SubArea: 
Polygons
Level: 
B
Project ID: 
2010015005
Source Problem: 
1103021408
Accepted: 
0
Clonable: 
1
Easy: 
1
Given the isosceles trapezium \( ABCD \), where \( |AB| = 12\,\mathrm{cm} \), \( |BC| = 4\,\mathrm{cm} \), \( |CD| = 16\,\mathrm{cm} \), and \( |AD| = 4\,\mathrm{cm} \), determine the measure of \( \measuredangle BCD \).
\( 60^{\circ} \)
\( 70^{\circ} \)
\( 45^{\circ} \)
\( 120^{\circ} \)