QUADRILATERAL AND ITS TYPES

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.

CONCAVE QUDRILATERALS• CONCAVE QUDRILATERALS ARE THE

QUDRILATERALS WHICH HAVE ATLEAST ONE ANGLE ABOVE THAN 180 DEGREE.

CONVEX POLYGON• CONVEX QUADRILATERALS ARE THE

QUADRILATERALS WICH HAVE ALL THE ANGLES BELOW 180 DEGREE.

TYPES OF QUDRILATERALS

SQUARERECTANGLERHOMBUS

PARALLELOGRAMKITE

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

RECTANGLE• OPPOSITE SIDES ARE EQUAL AND PARALLEL.

• EACH ANGLE IS A RIGHT ANGLE.

• DIAGONALS ARE EQUAL.

RHOMBUS• OPPOSITE SIDESE ARE EQUAL AND PARALLEL.

• ALL ANGLES ARE EQUAL.

• DIAGONALS ARE EQUAL AND PERPENDICULAR.

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.

KITE• ADJECENT SIDES ARE EQUAL.• DIAGONALS ARE

PERPENDICULAR AND BISECT EACH OTHER.• ONE PAIR OFOPPOSITE SIDES IS EQUAL AND ANOTHER IS UNEQUAL.

SUBMITED TO-

SUBMITED BY-SAROJ MAAM

JASMEHAK KARN

VIII-A12