In this page area of trapezium we are going to see the formula to find area of parallelogram also we are going to see example problems to understand this topic.
Definition of trapezium:
The definition of trapezium is entirely different in both US and UK.
Definition of trapezoid:
Formula to find area of trapezoid:
Area = (1/2) (a + b) x h
Now we are going to see some examples to understand this topic.
Find the area of the trapezium ABCD given in the below figure.
Area of trapezium = (1/2) (a + b) x h
a = 5 cm , b = 12 cm and h = 4 cm
= (1/2) (5 + 12 ) x 4
= (1/2) x (17) x 4
= 17 x 2
= 34 cm²
a trapezium the measurement of one parallel side two more than the
other parallel side and the height is 4 cm. The area of the trapezium is
64 cm². Find the two parallel sides.
Area of the trapezium = 64 cm²
Let the two parallel sides be "a" and "b"
One parallel side is two more than the other parallel side. So we can assume b as a + 2
Area of a trapezium = (1/2) (a + b) x h
(1/2) (a + b) x h = 64
(1/2) (a + a + 2) x 4 = 64
(1/2) (2a + 2) x 4 = 64
2 (2a + 2) = 64
2a + 2 = 64/2
2a + 2 = 32
2a = 32 - 2
2a = 30
a = 30/2
a = 15 cm
b = a + 2
b = 15 + 2
b = 17 cm
Therefore the two parallel sides are 15cm and 17 cm.