Level:
Project ID:
1103054909
Accepted:
1
Clonable:
0
Easy:
0
In the convex quadrilateral \( ABCD \), \( |AB| = |DA| = 20\,\mathrm{cm} \), \( |BC| = |CD| = 15\,\mathrm{cm} \). The diagonal \( AC \) is \( 25\,\mathrm{cm} \) long. Give the measure of the angle \( ABC \).
\( 90^{\circ} \)
\( 37^{\circ} \)
\( 53^{\circ} \)
\( 72^{\circ} \)