5. NEW TERMS OF RHOMBUS
• Base- Any side can be considered a base. If
used to calculate the area ,the corresponding
altitude must be used. In the figure above one
of the four possible bases has been chosen.
• Altitude -The altitude of a rhombus is the
perpendicular distance from the base to the
opposite side
• Diagonals -Each of the two diagonals is the
perpendicular bisector of the other
6. RHOMBUS
• A rhombus is actually just a special type of
parallelogram. With a rhombus, all four sides
are the same length.
7. PROPERTIES OF RHOMBUS
•Sides are equal
•Opposite angles are equal
•Opposite sides are parallel
8. Calculate the area of Rhombus
d1
B O D
d2
A
C
Where d1 and d2 are the diagonals
9. Divisions of Rhombus
• Diagonals divide the rhombus in to four equilateral traingles.if the lengths are
taken as d1 and d2
½ d1
½ d2
A
B o
10. AREA OF RHOMBUS
Area of rhombus is the half of
the product of diagonals
