The bottom of a parallelogram steel plate is 3 or 8 meters, and the height is 1 or 5 meters. What is the area of this parallelogram steel plate?

The bottom of a parallelogram steel plate is 3 or 8 meters, and the height is 1 or 5 meters. What is the area of this parallelogram steel plate?

3.8×1.5＝5.7

A parallelogram flower bed, Xiaoming measured its bottom is 6m, the corresponding height is 3.5m, the area of flower bed is how many square meters?
Come on, in a hurry, close the problem in ten minutes!
Letter formula

S=ah=6x3.5=21m^2

A piece of land is approximately a parallelogram with a bottom of 85.5m and a height of 24m. How many square meters is the area of this land?

S = 85,5x24 = 2052 M2 - about 3,01 Mu