This document introduces the formula for calculating the area of a parallelogram. It defines a parallelogram as a quadrilateral with two pairs of parallel sides. It derives the area formula by drawing a diagonal to divide the parallelogram into two triangles, and showing that the area of each triangle is 1/2 * base * height. Therefore, the total area of the parallelogram is equal to the sum of the two triangles, which is the base times the height.

1. WELCOME

2. Presented by
SREELEKSHMI.K
OPTION :
MATHEMATICS
ROLL NO.: 55

3. AreA of pArAllelogrAm

4. Today we are going to
drive formula for the
circle of parallelogram

5. What do you mean by a
Parallelogram
Parallelogram is a quadrilateral
with two opposite sides are parallel

6. Life examples of
parallelogram

7. Look at the picture
ABCD is a parallelogram

8. We can draw a diagonal to this
parallelogram
Now the parallelogram ABCD is divided into
two triangle ABD and BCD

9. We can draw the attitude h and
base b of the parallelogram
h
h
b

10. Area of ACD = ½ bh
Area of BCD = ½ bh

11. Area of the parallelogram ABCD is
equal to the sum of two triangles
ACD and BCD

12. So area of the parallelogram ABC
= ½ bh + ½ bh
= bh

13. So area of the parallelogram = bh
Where b = Base of the parallelogram
h = height from base to opposite side