# Goniometry and trigonometry - math problems

#### Number of problems found: 411

- Trigonometry

Is true equality? ? - Trigonometry

If you know that cos(γ) = sin (806°), what is the angle γ? - Modulus and argument

Find the mod z and argument z if z=i - Cotangent

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

In △ABC a=2, b=4 and ∠C=100°. Calculate length of the side c. - Proportional relationship

The ordered pairs (6,24) and (1, s) represent a proportional relationship. Find the value of s. - Earth's circumference

Calculate the Earth's circumference of the parallel 48 degrees and 10 minutes. - Sines

In ▵ ABC, if sin(α)=0.5 and sin(β)=0.6 calculate sin(γ) - Height 2

Calculate the height of the equilateral triangle with side 27. - Scalene triangle

Solve the triangle: A = 50°, b = 13, c = 6 - Trigonometric functions

In the right triangle is: ? Find the value of s and c: ? ? - Inscribed and described circle

Find the radii of a circle inscribed and circumscribed by a regular pentagon whose side measures 3 cm. - Two bricks

One brick weighs 1kg and half a brick, how many weigh two bricks? - Right

Determine angles of the right triangle with the hypotenuse c and legs a, b, if: ? - Goniometric form

Determine goniometric form of a complex number ?. - Q-Exam

If tg α = 9.6, Calculating sin α, cos α, cotg α . - Angle between lines

Calculate the angle between these two lines: ? ? - Ladder slope

What is the slope of a ladder 6.2 m long and 5.12 m in height. - Bevel

I have bevel in the ratio 1:6. What is the angle and how do I calculate it? - 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.

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