Mathematical
2021-12-15
App description
Calculation formula:
1.Round area = π * r2
2.Circumference length = 2 * π * r
3.Arc area (shadow) = r2 * (a - sin(...
2021-12-15
App description
AO and OB are called radius
AC, BC and AB are called strings
Angle ACB is the circumferential angle
Angle AOB is ...
2021-12-15
App description
Elliptical perimeter calculation formula
\(C=2π√[ \frac {(r1)^2+(r2)^2}{2} ]\)
Usage example
Input data
Radius (r1...
2021-12-15
App description
Diamond perimeter = 4 x side length
Usage example
Input data:
Length: 5
Click on calculation to output data
Diamon...
2021-12-15
App description
The graphic above is a regular octagon
The outer blue circle is called the circumscribed circle. The circle is ca...
2021-12-15
App description
Pythagorean theorem is a basic geometric theorem. The sum
of the squares of the lengths of the two right sides of ...
2021-12-15
App description
Calculation formula of spherical crown volume and surface area
1.Spherical volume \(V= 4/3 \times π \times r^3\)
2...
2021-12-15
App description
\(S= \frac {1}{2} (a+c) \times h=l \times h\)
\(h^2=[(a+b-c+d) \cdot (-a+b+c+d) \cdot (a-b-c+d) \cdot (a+b-c-d)] ...
2021-12-15
App description
Trapezoidal formula:
1.Area \(S = h(a+b)/2\)
2.Oerimeter \(C = a + b + c + d\)
3.Diagonal \(L1H2 = sqrt(h2+(b-sqrt...
2021-12-15
App description
The height of the triangle: a vertical line from one
vertex of the triangle to its opposite side,
and the line be...