Number of problems found: 1282
- Trigonometric functions
In the right triangle is: tg α= frac(2) 1 Find the value of s and c: sin α= (s)/(√ 5) cos α= (c)/(√ 5)
Can be a diagonal of diamond twice longer than it side?
- Diagonals of the rhombus
Calculate height of rhombus whose diagonals are 12 cm and 19 cm.
- 3-bracket 3
Two angles in a triangle are 90° and 60°. Has triangle at least two equal sides?
- 3-bracket 2
May be the smallest angle in the triangle greater than 70°?
May be the largest angle in the triangle less than 20°?
Can a rhombus have the same length diagonal and side?
Point on the circle is the end point of diameter and end point of chord length of radius. What angle between chord and diameter?
In a circle with radius r=60 cm is chord 4× longer than its distance from the center. What is the length of the chord?
- Is right?
Is a triangle with sides 51, 56, and 77 right triangle?
Calculate the angle between box base 9 x 14 and body diagonal length 18.
In the right triangle are sides a=96 dm b=31 dm. Calculate the length of the medians tc to the hypotenuse.
- Isosceles triangle
Calculate the perimeter of isosceles triangle with arm length 73 cm and base length of 48 cm.
The triangle is one outer angle 158°54' and one internal angle 148°. Calculate the other internal angles of a triangle.
Calculate the length of the belt on pulleys with diameters of 105 mm and 393 mm at shaft distance 697 mm.
- Track arc
Two straight tracks is in an angle 74°. They will join with circular arc with radius r=1127 m. How long will be arc connecting these lines (L)? How far is the center point of arc from track crossings (x)?
- Heron backlaw
Calculate missing side in a triangle with sides 17 and 34 and area 275.
- Sphere cuts
At what distance from the center intersects sphere with radius R = 56 plane, if the cut area and area of the main sphere circle is in ratio 1/2.
- Equilateral triangle
Calculate the side of an equilateral triangle if its area is 892 mm2.
- Right triangle
Right triangle legs has lengths 630 mm and 411 dm. Calculate the area of this triangle.
See also our trigonometric triangle calculator. See also more information on Wikipedia.