A triangle area of 0.8 hectares, its bottom is 500 meters, what is the height

A triangle area of 0.8 hectares, its bottom is 500 meters, what is the height

1 ha = 10000 m2, 0.8 ha = 8000 m2,
Bottom * height / 2 = 8000
Height = 2 * 8000 / bottom = 2 * 8000 / 500 = 32 (m)

The sum of the top and bottom of a trapezoidal lawn is 500 meters, and its height is half of the sum of the upper and lower parts. What is the area of this lawn?

500*250/2=62500

A trapezoidal vegetable field, 60 meters above the bottom, 80 meters below the bottom, 50 meters high, its area is______ Square meters______ Ha

(60+80)×50÷2
=140×50÷2
=3500 (M2)
=35 ha
A: its area is 3500 square meters, or 0.35 hectares
So the answer is: 3500; 0.35

A trapezoidal wheat field, 400 meters at the top and 500 meters at the bottom, is 100 meters high. How many hectares is its area

1 / 2 * (400 + 500) * 100 △ 10000 = 4.5 ha

The sum of the top and bottom of a trapezoidal field is 500 meters, and its height is half of the sum of the upper, lower and lower floors. What is the area of this land,

Height: 500 △ 2 = 250m
Area: 500 × 250 △ 2 = 62500 square meters
62500 square meters = 6.25 hectares

Here's a plan of a trapezoidal lawn on a scale of 1:5000. What's the actual area of this lawn? It's 2cm high, 2.5cm at the top and 3.5cm at the bottom. Quick!

Height 2 △ 1 / 5000 △ 100 = 100m
Top bottom 100 △ 2 × 5 = 250m
Bottom 100 △ 2 × 3.5 = 175m
Area (250 + 175) × 100 △ 2 = 21250 square meters

The area of a triangular plot is 0.9 hectares. Its bottom is 300 meters. How high is it?

0.9 ha = 9000 M2
So the height is 9000 × 2 △ 300 = 60 meters

How many meters is 1200 meters high at the bottom of a triangle with an area of 2.4 hectares?

2.4 ha = 24000 M2
Height = 2 * 24000 △ 1200 = 40m

There is a parallelogram, covering an area of 2.4 hectares, with a base of 160 meters and a height of several meters

1 ha = 10 000 m2
2.4x10000 = 24000 square meters
24000 △ 160 = 150m

Street Garden covers an area of 9 Among them, 1 The garden covers an area of 1.5 hectares 10. How many hectares is the lawn larger than the flower bed?

One
5-9
10×1
Ten
=1
5-9
One hundred
=11
100 (HA)
A: the area of lawn is 11 times larger than that of flower bed
100 hectares