# Sine + real numbers - math problems

#### Number of problems found: 7

- Cotangent

If the angle α is acute, and cotg α = 1/3. Determine the value of sin α, cos α, tg α. - Trigonometric functions

In the right triangle is: ? Find the value of s and c: ? ? - Regular 5-gon

Calculate the area of the regular pentagon with side 7 cm. - IS triangle

Calculate interior angles of the isosceles triangle with base 40 cm and legs 22 cm long. - Angles

Determine the interior angles of a rhombus with area 319.1 cm^{2}and perimeter 72 cm. - Cuboid

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° - Observer

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?

We apologize, but in this category are not a lot of examples.

Do you have an interesting mathematical word problem that you can't solve it? Submit a math problem, and we can try to solve it.

Do you have an interesting mathematical word problem that you can't solve it? Submit a math problem, and we can try to solve it.

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.