quadrilaterals

2. QUADRILATERALS
• A quadrilateral is a polygon with four sides.
• The origin of the word "quadrilateral" is the
two Latin words quadri, a variant of four, and
latus, meaning "side".
• Simple quadrilaterals are either convex or
concave.
• The interior angles of a simple quadrilateral
ABCD add up to 360 degrees that is
A + B + C + D = 360 degrees.

3. CONCAVE QUDRILATERALS
• CONCAVE QUDRILATERALS ARE THE
QUDRILATERALS WHICH HAVE ATLEAST ONE
ANGLE ABOVE THAN 180 DEGREE.

4. CONVEX POLYGON
• CONVEX QUADRILATERALS ARE THE
QUADRILATERALS WICH HAVE ALL THE
ANGLES BELOW 180 DEGREE.

5. TYPES OF
QUDRILATERALS
SQUARE
RECTANGLE
RHOMBUS
PARALLELOGRAM
KITE

6. SQUARE
• A QUAD WITH ALL
EQUAL SIDE.
• ALL ANGLES ARE
90 DEGREE.
• ALL SIDES ARE EQUAL
AND PARALLEL.
• DIAGONALS ARE EQUAL
AND PERPENDICILAR.

7. RECTANGLE
• OPPOSITE SIDES ARE
EQUAL AND PARALLEL.
• EACH ANGLE IS A RIGHT
ANGLE.
• DIAGONALS ARE EQUAL.

8. RHOMBUS
• OPPOSITE SIDESE ARE
EQUAL AND PARALLEL.
• ALL ANGLES ARE EQUAL.
• DIAGONALS ARE EQUAL
AND PERPENDICULAR.

9. PARALLELOGRAM
• OPPOSITE SIDES ARE
EQUAL AND PARALLEL.
• OPPOSITE ANGLES
ARE EQUAL.
• DIAGONALS BISECT
EACH OTHER AND
ARE UNEQUAL.
• SUM OF ADDJECENT
ANGLES IS 180 DEGREE.

10. KITE
• ADJECENT SIDES
ARE EQUAL.
• DIAGONALS ARE
PERPENDICULAR
AND BISECT EACH
OTHER.
• ONE PAIR OFOPPOSITE
SIDES IS EQUAL AND
ANOTHER IS UNEQUAL.