# Rhombus 29

One of the diagonals of a rhombus is equal to a side of the rhombus. Find the angles of the rhombus.

Correct result:

A =  120 °
B =  60 °
C =  120 °
D =  60 °

#### Solution:

$a=u \ \\ a=b=c=d \ \\ SSS: a, u, b \ \\ U=180/3=60 \ ^\circ \ \\ A=2 \cdot \ U=2 \cdot \ 60=120 ^\circ$

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