Triangle - examples

See also our trigonometric triangle calculator.

  1. Right triangle eq2
    rt_2 Hypotenuse of a right triangle is 9 cm longer than one leg and 8 cm longer than the second leg. Determine the circumference and area of a triangle.
  2. Is right?
    rtriangle Is triangle with sides 24, 51 and 45 right triangle?
  3. Laws
    pyt_triangle From which law follows directly the validity of Pythagoras' theorem in the right triangle? ?
  4. It is rectangular?
    nice_3d Size of two of the angles in a triangle are: α=60°, β=20°. Is it a right triangle?
  5. Triangle
    eq_triangle Can be rectangular triangle equilateral?
  6. Similarity
    similar_triangle Are two right triangles similar to each other if the first one has a acute angle 10° and second one has acute angle 50°?
  7. Triangle
    triangles Prove whether you can construct a triangle ABC, if a=5 cm, b=10 cm, c=2 cm.
  8. Triangle P2
    1right_triangle Can triangle have two right angles?
  9. KLMN
    trapezium In the trapezoid KLMN is given this informations: 1. segments KL and MN are parallel 2. segments KL and KM has same length 3. segments KN, NM and ML has same length. Determine the size of the angle KMN.
  10. Right Δ
    ruler Right triangle has length of one leg 7 cm and length of the hypotenuse 25 cm. Calculate the height of the triangle.
  11. Center traverse
    trianles It is true that the middle traverse bisects the triangle?
  12. 3-bracket
    triangle2 May be the largest angle in the triangle less than 70°?
  13. 3-bracket 2
    1triangle May be the smallest angle in the triangle greater than 20°?
  14. MO SK/CZ Z9–I–3
    ball_floating_water John had the ball that rolled into the pool and it swam in the water. Its highest point was 2 cm above the surface. Diameter of circle that marked the water level on the surface of the ball was 8 cm. Determine the diameter of John ball.
  15. Diagonal
    rectangle_diagonal Calculate the length of the diagonal of the rectangle ABCD with sides a = 7 cm, b = 6 cm.
  16. Railways
    railways Railways climb 5.8 ‰. Calculate the height difference between two points on the railway distant 2389 meters.
  17. 3-bracket 3
    triangle_3 Two angles in a triangle are 80° and 50°. Has triangle at least two equal sides?
  18. Triangle
    triangle_inequality Determine if it is possible to construct a triangle with sides 22 38 36 by calculation.
  19. Diagonal
    rhombus Can a rhombus have the same length diagonal and side?
  20. Circle chord
    circleChord What is the length d of the chord circle of diameter 58 mm, if distance from the center circle is 24 mm?

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