# Angle + arctangent - math problems

#### Number of examples found: 33 Average climb of the road is given by ratio 1:15. By what angle road average climb? Road sign informs the gradient is 10.3%. Calculate the angle which average decreases. On a straight stretch of road is marked 12 percent drop. What angle makes the direction of the road with the horizontal plane?
• The angle of lines Calculate the angle of two lines y=x-21 and y=-2x+14
• Goniometric form Determine goniometric form of a complex number ?.
• Angle A straight line p given by the equation ?. Calculate the size of angle in degrees between line p and y-axis.
• Bevel I have bevel in the ratio 1:6. What is the angle and how do I calculate it?
• Church tower Archdeacon church in Usti nad Labem has diverted tower by 186 cm. The tower is 65 m high. Calculate the angle by which the tower is tilted. Result write in degree's minutes.
• Pyramid Pyramid has a base a = 5cm and height in v = 8 cm. a) calculate angle between plane ABV and base plane b) calculate angle between opposite side edges.
• Stairway What angle rising stairway if step height in 17 cm and width 27 cm?
• Angle between lines Calculate the angle between these two lines: ? ?
• Hole's angles I am trying to find an angle. The top of the hole is .625” and the bottom of the hole is .532”. The hole depth is .250” what is the angle of the hole (and what is the formula)?
• Climb Road has climbing 1:27. How big is a angle corresponds to this climbing?
• Cube - angles Calculate angle between the wall diagonal and cube base. Calculate the angle between the cube body diagonal and cube base.
• V-belt Calculate a length of the V-belt when the diameter of the pulleys is: D1 = 600 mm D2 = 120 mm d = 480 mm
• Angle of two lines There is a regular quadrangular pyramid ABCDV; | AB | = 4 cm; height v = 6 cm. Determine the angles of lines AD and BV.
• V-belt Calculate the length of the belt on pulleys with diameters of 105 mm and 393 mm at shaft distance 697 mm.
• Resultant force Calculate mathematically and graphically the resultant of a three forces with a common centre if: F1 = 50 kN α1 = 30° F2 = 40 kN α2 = 45° F3 = 40 kN α3 = 25° Between cities A and B is route 13 km long of stúpanie average 7‰. Calculate the height difference of cities A and B. What height difference overcome if we pass road 1 km long with a pitch21 per mille?