Question 1 of 26

The figure below shows a rhombus. Which of the following is true?

Question Image of The figure below shows a rhombus. Which of the following is true?   .
A
$\angle$a = 90$^\circ$
B
$\angle$b = $\angle$c
C
$\angle$b + $\angle$d = 180$^\circ$
D
$\angle$a + $\angle$b = 180$^\circ$
E
None of the above