Question

The area of a trapezium is 80cm² and the length of one of the parallel sides is 7cm and its height is 16cm. Find the length of the other parallel side. *

Answer 1

Answer:

Length of the other parallel side is 3cm.

Step-by-step explanation:

Area of any Trapezium

$=\frac{1}{2} . (a+b).h$  where a and b are the lengths of parallel sides and h is the height

According to the problem:

$80 = \frac{1}{2} .(7 + b).16$

$=>(7 + b) = \frac{80}{8} = 10$

∴ $b = 10 - 7 = 3$