The area and perimeter of the trapezium are 416.25 square cm and 89.5 cm, respectively
How to determine the area and perimeter of the trapezium
From the question, we have the following parameters that can be used in our computation:
The trapezium
The area of the trapezium is calculated as
Area = 1/2 * Sum of parallel sides * Height
Using the above as a guide, we have the following:
Area = 1/2 * (20 + 35.5) * 15
Area = 416.25
The perimeter is the sum of the side lengths
So, we have
Perimeter = 16 + 18 + 20 + 35.5
Perimeter = 89.5
Hence, the area and perimeter of the trapezium are 416.25 square cm and 89.5 cm, respectively