Angle Problems

Number of problems found: 650

  • Cis notation
    complex_numbers Evaluate multiplication of two complex numbers in cis notation: (6 cis 120°)(4 cis 30°) Write result in cis and Re-Im notation.
  • Calculate 20
    angles Calculate the sum of 1/5 of a right angle and 3/4 of a right angle and 3/4 of a straight angle
  • Supplementary angles
    supplementary_angles (a + 30)° and (2a)° are the measure of two supplementary angles. Find the value of 'a'.
  • Trapezoids
    lichobeznik In the isosceles trapezoid ABCD we know: AB||CD, |CD| = c = 8 cm, height h = 7 cm, |∠CAB| = 35°. Find the area of the trapezoid.
  • One of
    rhombus-diagonals2 One of the internal angles of the rhombus is 120° and the shorter diagonal is 3.4 meters long. Find the perimeter of the rhombus.
  • A straight angle
    angles A straight angle measures s, so you can subtract or add 85 from What are the measure of there angles?
  • A missile
    ballistic_curve A missile is fired with a speed of 100 fps in a direction 30° above the horizontal. Determine the maximum height to which it rises? Fps foot per second.
  • The sum 11
    angles The sum of the measures of two angles is 89°. One angle has a measure of 64°. What is the measure in degrees of the second angle?
  • The two
    triangle The two angles of a triangle are 78° and 82°. So what is the measure of the remaining third angle?
  • Construct 8
    axes2 Construct an analytical geometry problem where it is asked to find the vertices of a triangle ABC: the vertices of this triangle must be the points A (1,7) B (-5,1) C (5, -11). the said problem should be used the concepts of: distance from a point to a li
  • Wheel gear
    bicycle_gears A drive wheel of radius 2 is connected to a drive wheel of radius 1 by a pulley of length 17. What is the distance between the wheel axles?
  • The temperature 13
    graf_pohyb The temperature in Toronto at noon during a winter day measured 4°C. The temperature started dropping 2° every hour. Which inequality can be used to find the number of hours, x, after which the temperature will measure below -3°C?
  • Parallelogram diagonals
    kosodlznik Find the area of a parallelogram if the diagonals u1 = 15 cm, u2 = 12 cm and the angle formed by them is 30 degrees.
  • Diamond PQOR
    kosostvorec In the diamond PQOR, the diagonal RQ is 4 cm long and the angle RPQ is 60°. What is the circumference of this diamond?
  • Draw a
    60-a-b Draw a triangle ABC, if you know: alpha = 60° side b = 4 cm side a = 10 cm
  • Diamond and angles
    koso Find the area of a diamond with a side of 5 cm if you know that the internal angles in the diamond are 60° and 120°.
  • Length of the chord
    tetiva2 Calculate the length of the chord in a circle with a radius of 25 cm with a central angle of 26°.
  • A rectangle 5
    rectangle_diagonals A rectangle has sides of 10 cm and 14 cm. Calculate the angle between a diagonal and a long side.
  • Parallelogram ABCD
    rovnobeznik We have the parallelogram ABCD, where AB is 6.2 cm BC is 5.4 cm AC is 4.8 cm calculate the height on the AB side and the angle DAB
  • Goat
    hexagon The fenced flower bed has the shape of a regular hexagon. The tops are formed by fence posts. The fence around the flowerbed measures 60 m. A goat is tied to one of the pillars from the outside and grazes on the surrounding meadow (the goat should not ent

Do you have an exciting math question or word problem that you can't solve? Ask a question or post a math problem, and we can try to solve it.

We will send a solution to your e-mail address. Solved examples are also published here. Please enter the e-mail correctly and check whether you don't have a full mailbox.

Please do not submit problems from current active competitions such as Mathematical Olympiad, correspondence seminars etc...