Planimetrics - math problemsStudy plane measurements, including angles, distances, and areas. In other words - measurement and calculation of shapes in the plane. Perimeter and area of plane shapes.
Number of problems found: 2136
- Clock hands
Calculate the internal angles of a triangle whose vertices lie on the clock's 2, 6 and 11 hours.
- Percitipation - meteo
Do you have any tip for calc percitipation on a lnd ? Example on 2 ha falls to 5 mm, how many cubic meters is it?
- Proof PT
Can you easily prove Pythagoras theorem using Euclidean theorems? If so, do it.
- Leg and height
Solve right triangle with height v = 9.6 m and shorter cathetus b = 17.3 m.
- Proof I
When added to the product of two consecutive integers larger one, we get square larger one. Is this true or not?
- Circumference - a simple
What is the ratio of the circumference of any circle and its diameter? Write the result as a real number rounded to 2 decimal places.
- Polygon 42
Which polygon has 42 more diagonals than sides?
- Rotary motion
Find the orbital time, rotational frequency, and angular rate of the second and minute hands on the watch.
Calculate the area of a regular pentagon, which diagonal is u=16.
The log has diameter 30 cm. What's largest beam with a rectangular cross-section can carve from it?
In the parallelogram we know one internal angle 67°33`. Calculate the other internal angles.
- Circle - AG
Find the coordinates of circle and its diameter if its equation is: ?
What angle are between directions WSW (WestSouthWest) and SSE (SouthSouthEast) on the compass?
- Cube diagonal
Determine the length of the cube diagonal with edge 37 mm.
- Equation - inverse
Solve for x: 7: x = 14: 1000
Calculate the length of the Thales' circle described to the right triangle with hypotenuse 44.2 cm.
- Circle r,D
Calculate the diameter and radius of the circle if it has length 26.59 cm.
Determine angles of the right triangle with the hypotenuse c and legs a, b, if: ?
- Body diagonal
Calculate the length of the body diagonal of the 6cm cube.
- Circle - simple
Calculate the area of a circle in dm2 if its circumference is 31.4 cm.
See also more information on Wikipedia.