Sine - math problems
Number of problems found: 158
- Angles by cosine law
Calculate the size of the angles of the triangle ABC, if it is given by: a = 3 cm; b = 5 cm; c = 7 cm (use the sine and cosine theorem).
- Right triangle trigonometrics
Calculate the size of the remaining sides and angles of a right triangle ABC if it is given: b = 10 cm; c = 20 cm; angle alpha = 60° and the angle beta = 30° (use the Pythagorean theorem and functions sine, cosine, tangent, cotangent)
- The cone
The lateral surface area of the cone is 4 cm2, the area of the base of the cone is 2 cm2. Determine the angle in degrees (deviation) of the cone sine and the cone base plane. (Cone side is the segment joining the vertex cone with any point of the base c
Is true equality? ?
- Height 2
Calculate the height of the equilateral triangle with side 27.
If tg α = 9.6, Calculating sin α, cos α, cotg α .
If the angle α is acute, and cotg α = 1/3. Determine the value of sin α, cos α, tg α.
Determine the smallest integer p for which the equation 4 sin x = p has no solution.
If you know that cos(γ) = sin (806°), what is the angle γ?
In ▵ ABC, if sin(α)=0.5 and sin(β)=0.6 calculate sin(γ)
- Trigonometric functions
In the right triangle is: ? Find the value of s and c: ? ?
Calculate the area of a regular pentagon, which diagonal is u=16.
Determine angles of the right triangle with the hypotenuse c and legs a, b, if: ?
- One side
One side is 36 long with a 15° incline. What is the height at the end of that side?
The angle of a straight road is approximately 12 degrees. Determine the percentage of this road.
- Ladder slope
What is the slope of a ladder 6.2 m long and 5.12 m in height.
- Isosceles triangle
What are the angles of an isosceles triangle ABC if its base is long a=5 m and has an arm b=4 m.
AC= 40cm , angle DAB=38 , angle DCB=58 , angle DBC=90 , DB is perpendicular on AC , find BD and AD
- Inscribed and described circle
Find the radii of a circle inscribed and circumscribed by a regular pentagon whose side measures 3 cm.
- Two triangles SSA
Two triangles can be formed with the given information. Use the Law of Sines to solve the triangles. A = 59°, a = 13, b = 14
Most natural application of trigonometry and trigonometric functions is a calculation of the triangles. Common and less common calculations of different types of triangles offers our triangle calculator. Word trigonometry comes from Greek and literally means triangle calculation.