# Thread: Properties of 4-Sided figures.

1. ## Properties of 4-Sided figures.

Find angle E.
This is a Parallelogram. NOT a triangle!!!
Its kinda easy but I keep getting confused, so please could anyone tell me how to do this?

2. Hello, ProMathematics!

Find angle e.

This is a Parallelogram. NOT a triangle!!!
. . It is not a pentagon either ... so what's your point?

Code:
            *  *  *  *  *  *  *
*  *              *
*     *           *
*        *        *
*           * 93' *
* 35'        e *  *
*  *  *  *  *  *  *

We're expected to know this fact:
. . Adjacent angles of a parallelogram are supplementary.

Hence: . $35^o + (e + 93^o) \;=\;180^o$

Now solve for e.

3. But, each pair of angles between 2 parallel sides add up to 180''. SO???? This is like <e= 180''-(92+35) = 53''
Is this the way to do it? If yes, YOU ARE MY SAVIOR TODAY!!!!