The slope angle of a hillside is 30 degrees. If one kilometer goes along a straight road with 45 degrees to the slope, the slope will rise A. 250 with 2m b.250 with 3M c.250 with 6m d.500m

The slope angle of a hillside is 30 degrees. If one kilometer goes along a straight road with 45 degrees to the slope, the slope will rise A. 250 with 2m b.250 with 3M c.250 with 6m d.500m

Choose a
1000 m forward at an angle of 45 ° is equal to 500 √ 2 m forward vertically on the slope and 250 √ 2 m upward

There is a hillside with an inclination angle of 30 degrees. There is a path on the hillside that forms a 60 degree angle with the bottom line of the slope. When you walk up 80 meters along this path, the ground rises by% B

Let the starting point of the path be a, and the ending points B and ab be 80 meters long. Let a line AC perpendicular to the bottom line of the slope be drawn from a, and AC and ab also be perpendicular. Let a vertical line CD be drawn from point C to the horizontal plane, and CD is perpendicular to the horizontal plane. Then the angle cab is 90-60 = 30 degrees, and AC = 80 × cos (30) = 40 × 3 under the root sign