Unit conversion + circle - math problems
Number of problems found: 78
Calculate the area and circumference of the regular decagon when its radius of a circle circumscribing is R = 1m
- Annulus from triangle
Calculate the content of the area bounded by a circle circumscribed and a circle inscribed by a triangle with sides a = 25mm, b = 29mm, c = 36mm
- Central angle
What is the length of the arc of a circle with a diameter of 46 cm, which belongs to a central angle of 30°?
Base of building is circle with diameter 25 m. Calculate the circumference of a circular trench witch diameter is 41 cm wider than the diameter of the base.
- Circle arc
Calculate the circular arc area in m2 where the diameter is 263 dm, and a central angle is 40°. Result round to three decimal places.
How long is trajectory of second hand of hours for day, if is 15 mm long?
- Rotaty motion
What is the minimum speed and frequency that we need to rotate with water can in a vertical plane along a circle with a radius of 70 cm to prevent water from spilling?
What is the wheel diameter if on the 0.57 km track turns 106 times?
What angle are between directions WSW (WestSouthWest) and SSE (SouthSouthEast) on the compass?
- Constant Angular Acceleration
The particle began to move from rest along a circle with a constant angular acceleration. After five cycles (n = 5), its angular velocity reached the value ω = 12 rad/s. Calculate the magnitude of the angular acceleration ε of this motion and the time int
The rectangle is 21 cm long and 38 cm wide. Determine the radius of the circle circumscribing rectangle.
An electric motor makes 3,000 revolutions per minutes. How many degrees does it rotate in one second?
- Earth parallel
Earth's radius is 6370 km long. Calculate the length parallel of latitude 50°.
- Circular pool
The base of the pool is a circle with a radius r = 10 m, excluding a circular segment that determines the chord length 10 meters. The pool depth is h = 2m. How many hectoliters of water can fit into the pool?
The length of the minute hand is 12 cm. What track in meters will its end point describe in a week?
- The central
The central angle of a sector is 30° and the radius is 15 m. Determine its perimeter.
How many times a day hands on a clock overlap?
- A bicycle
A bicycle wheel has a diameter of 63 cm. Calculate how many times the wheel turns round in travelling 19.8 km .
Around the circular flowerbed with a radius of 2 m is a sidewalk 80 cm wide. How many square meters does the sidewalk have?
Diameter of motocycle wheel is 52 cm. How many times rotates wheel on roand long 2 km?
Unit conversion - math problems. Circle Problems.