Fifth grade math, please 1. The top bottom of a trapezoid is 18 cm, the bottom is 25 cm, and the height is 15 cm. Cut out the largest parallelogram from the trapezoid. What is the area of the parallelogram? If you cut out the largest triangle, what is the area of the triangle? Come on!

Fifth grade math, please 1. The top bottom of a trapezoid is 18 cm, the bottom is 25 cm, and the height is 15 cm. Cut out the largest parallelogram from the trapezoid. What is the area of the parallelogram? If you cut out the largest triangle, what is the area of the triangle? Come on!

Very simple, parallelogram: take 18 * 15 as the largest area
Triangle, bottom: 25 * 15 * 1 / 2 is the largest area

Insert a data B into the data 12, 12, 16, 25, 16, 32 and 48 so that the median of the data group is 16, then B = (),
In this case, the mode of the data set is ()

Then B = 16
The mode is 16
(fill in decimal)
3 months = (0.25 years)
20 points = (0.33 hours)

The first is the equation
Q: the circumference of a rectangle is 14 meters and its length is five meters. How many meters is its width?
The second is:
Q: the distance between each two poles in a row is 45 meters. Now it has to be changed to 60 meters. If one of the starting points doesn't move, how far away is there another one that doesn't need to move?

1. 14 / 2-5 = 2m
2. The least common multiple of 45 and 60 is 180 meters