Angle + real numbers - math problems

Number of problems found: 13

  • Cotangent
    sin_cos If the angle α is acute, and cotg α = 1/3. Determine the value of sin α, cos α, tg α.
  • Cuboid
    cuboid_diagonal Determine the dimensions of cuboid a, b, c; if diagonal d=9 dm has angle with edge a α=55° and has angle with edge b β=58°
  • Building
    Taipei_101 How high is the building that throws horizontal shadow 95.4 m long at angle 50°?
  • Observer
    ohrada The observer sees a straight fence 100 m long in 30° view angle. From one end of the fence is 102 m. How far is it from another end of the fence?
  • Triangle TBC
    isosceles_triangle TBC is isosceles triangle with base TB with base angle 63° and legs length |TC| = |BC| = 25. How long is the base TB?
  • Trigonometric functions
    trigonom In the right triangle is: ? Find the value of s and c: ? ?
  • Rail turn
    railroad_turn The curve radius on the railway line is 532 m . Length of rail track on it is 818 m. How many degrees is the angle ASB, if A and B are boundary points and S is center of arc curve.
  • Cone A2V
    popcorn The surface of the cone in the plane is a circular arc with central angle of 126° and area 415 cm2. Calculate the volume of a cone.
  • Slope
    slope What is the slope of a line with an inclination 6.06 rad?
  • Regular 5-gon
    5gon_2 Calculate the area of the regular pentagon with side 7 cm.
  • IS triangle
    isoscelestriangle-pic Calculate interior angles of the isosceles triangle with base 40 cm and legs 22 cm long.
  • Quarter circular
    quarter_circle The wire that is hooked around the perimeter of quarter-circular arc has length 3π+12. Determine the radius of circle arc.
  • Angles
    rhombus_1 Determine the interior angles of a rhombus with area 319.1 cm2 and perimeter 72 cm.

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