# Right triangle + tangent - math problems

#### Number of problems found: 136

• 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)
• One side
One side is 36 long with a 15° incline. What is the height at the end of that side?
• Bevel
I have bevel in the ratio 1:6. What is the angle and how do I calculate it?
• Sphere in cone
A sphere is inscribed in the cone (the intersection of their boundaries consists of a circle and one point). The ratio of the surface of the ball and the contents of the base is 4: 3. A plane passing through the axis of a cone cuts the cone in an isoscele
• Climb
Road has climbing 1:27. How big is a angle corresponds to this climbing?
• Pilot
How high is the airplane's pilot to see 0.001 of Earth's surface?
• Railway
Railway line had on 5.8 km segment climb 9 permille. How many meters track ascent?
The angle of a straight road is approximately 12 degrees. Determine the percentage of this road.
• Hole's angles
I am trying to find an angle. The top of the hole is .625” and the bottom of the hole is .532”. The hole depth is .250” what is the angle of the hole (and what is the formula)?
• Height difference
What height difference overcome if we pass road 1 km long with a pitch21 per mille?
• Inscribed and described circle
Find the radii of a circle inscribed and circumscribed by a regular pentagon whose side measures 3 cm.
• The staircase
The staircase has a total height of 3.6 m and forms an angle of 26° with the horizontal. Calculate the length of the whole staircase.
• Slope
What is the slope of a line with an inclination 6.06 rad?
• Tree
How tall is the tree that observed in the visual angle of 52°? If I stand 5 m from the tree and eyes are two meters above the ground.
• Find the
Find the content of a regular 12 sided polygon, if its side a = 12 cm.
• Steeple
Steeple seen from the road at an angle of 75°. When we zoom out to 25 meters, it is seen at an angle of 20°. What is high?
• n-gon II
What is the side length of the regular 5-gon circumscribed circle of radius 11 cm?
• How far
From the top of a lighthouse 145 ft above sea level, the angle of depression of a boat 29°. How far is the boat from the lighthouse?