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[18] [19] Today, the degree, 1 / 360 of a turn, or the mathematically more convenient radian, 1 / 2 π of a turn (used in the SI system of units) is generally used instead. In the 1970s – 1990s, most scientific calculators offered the gon (gradian), as well as radians and degrees, for their trigonometric functions. [23]
Administrative regions are groupings of geographically adjacent LGUs that are established, disestablished, and modified by the president of the Philippines based on the need to more coherently make economic development policies and coordinate the provision of national government services within a larger area beyond the province level.
One radian is defined as the angle at the center of a circle in a plane that subtends an arc whose length equals the radius of the circle. [6] More generally, the magnitude in radians of a subtended angle is equal to the ratio of the arc length to the radius of the circle; that is, =, where θ is the magnitude in radians of the subtended angle, s is arc length, and r is radius.
A degree (in full, a degree of arc, arc degree, or arcdegree), usually denoted by ° (the degree symbol), is a measurement of a plane angle in which one full rotation is 360 degrees. [4] It is not an SI unit—the SI unit of angular measure is the radian—but it is mentioned in the SI brochure as an accepted unit. [5]
Geodetic latitude and geocentric latitude have different definitions. Geodetic latitude is defined as the angle between the equatorial plane and the surface normal at a point on the ellipsoid, whereas geocentric latitude is defined as the angle between the equatorial plane and a radial line connecting the centre of the ellipsoid to a point on the surface (see figure).
The government of the Philippines (Filipino: Pamahalaan ng Pilipinas) has three interdependent branches: the legislative, executive, and judicial branches.The Philippines is governed as a unitary state under a presidential representative and democratic constitutional republic in which the president functions as both the head of state and the head of government of the country within a pluriform ...
The taxes imposed by the Code include a graduated income tax on all income earned by natural and juridical persons within the Philippines, a capital gains tax, excise tax on certain products, a Donor's Tax, an estate tax, and a value-added tax on the sale of most goods and services in the Philippines.
As of 2024, the Philippines is divided into 18 regions. Seventeen of these are mere administrative groupings, each provided by the president of the Philippines with a regional development council (RDC) – in the case of the National Capital Region (Metro Manila), an additional metropolitan development authority serves as the coordinating and ...