# Cosine - math problems

#### Number of problems found: 154

- Diagonals in diamond

In the rhombus is given a = 160 cm, alpha = 60 degrees. Calculate the length of the diagonals. - Box

Calculate the angle between box base 9 x 14 and body diagonal length 18. - Greatest angle

Calculate the greatest triangle angle with sides 197, 208, 299. - Sphere in cone

A sphere of radius 3 cm describes a cone with minimum volume. Determine cone dimensions. - EQL triangle

Calculate inradius and circumradius of equilateral triangle with side a=77 cm. - Find the area

Find the area of the triangle with the given measurements. Round the solution to the nearest hundredth if necessary. A = 50°, b = 30 ft, c = 14 ft - Angle between vectors

Find the angle between the given vectors to the nearest tenth of a degree. u = (-22, 11) and v = (16, 20) - Angle between lines

Calculate the angle between these two lines: p: -8x +4y +5 =0 q: 10x +10y -7=0 - Chord - TS

The radius of circle k measures 68 cm. Arc GH = 47 cm. What is TS? - The aspect ratio

The aspect ratio of the rectangular triangle is 13: 12: 5. Calculate the internal angles of the triangle. - Diagonals

Calculate the length of the rhombus's diagonals if its side is long 5 and one of its internal angles is 80°. - Triangle

Calculate the area of the triangle ABC if b = c = 17 cm, R = 19 cm (R is the circumradius). - Decide 2

Decide whether points A[-2, -5], B[4, 3] and C[16, -1] lie on the same line - Felix

Calculate how much land saw Felix Baumgartner after jump from 32 km above ground. The radius of the Earth is R = 6378 km. - Right triangle

A right triangle ABC is given, c is a hypotenuse. Find the length of the sides a, b, the angle beta if c = 5 and angle alfa = A = 35 degrees. - Regular 5-gon

Calculate the area of the regular pentagon with side 7 cm. - Isosceles triangle 10

In an isosceles triangle, the equal sides are 2/3 of the length of the base. Determine the measure of the base angles. - Isosceles triangle 8

If the rate of the sides an isosceles triangle is 7:6:7, find the base angle correct to the nearest degree. - The angle of view

Determine the angle of view at which the observer sees a rod 16 m long when it is 18 m from one end and 27 m from the other. - Angle of the body diagonals

Using vector dot product calculate the angle of the body diagonals of the cube.

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