1. parallelogram plot, with a base length of 280m and a height of 1 15m, with 7084kg of rapeseed harvested. How many kilograms of rapeseed is produced per square meter on average?

2. There is a rectangular red silk with a length of12m and a width of 9m. How many sides can you make it into a right-angled pennant with a base length of 0.72 meters and a height of 0.3 meters?

There is a parallelogram steel plate with a bottom length of 6.3 meters and a height of 3 times. It is understood that this steel plate weighs 39 kilograms per square meter. How much does this steel plate weigh?

There is a parallelogram iron plate with a bottom of 9 decimeters and a height of 6 decimeters. You can press a small part every 0.2 square decimeter. How many pieces can this iron plate be pressed into?