In a rectangle $\mathrm{KITE}$, diagonal $\mathrm{KT}=13 \mathrm{cm}$, $\mathrm{IT}=5 \mathrm{cm}$. Find $\mathrm{KI}, \mathrm{KE}$ and $\mathrm{ET}$.

$\mathrm{ABCD}$ is a square. Find $x$.

Name the quadrilaterals whose diagonals:

Bisect each other.

Name the quadrilaterals whose diagonals:

Are perpendicular bisectors of each other.

Name the quadrilaterals whose diagonals:

Are equal

Identify all quadrilaterals that have:

$4$ sides of equal length.

Identify all quadrilaterals that have:

$4$ right angles