2016-II-17
Ans: A
Since $ABCD$ is a parallelogram, then $AD\text{//}B
… Read Since $ABCD$ is a parallelogram, then $AD\text{//}B

Since $A

I is true. Let $\theta$ be the angle of the sector $OAB$

Since $ABCD$, $CDEF$ and $EFGH$ are squares, then we h

Add points $E$ and $F$ on $AD$ and $CD$ respectively, s

Since $ABCD$ is a rhombus, then we have $BC\text{//}A

There are $2$ axes of reflectional symmetry as shown.
$\begin{array}{llcl}
1.
$\begin{array}{cl
