The phrase "area of a triangle" is correct and usable in written English.
You can use it when discussing geometry, mathematics, or any context where you need to refer to the measurement of a triangle's surface.
Example: "To find the area of a triangle, you can use the formula A = 1/2 * base * height."
Alternatives: "triangle's area" or "area measurement of a triangle."
Maybe the area of a triangle isn't that important, either.
The area of a triangle is half the base times the height.
One of his followers, the Swiss-German polymath Johann Heinrich Lambert (1728 77), observed that, based on the acute hypothesis, the area of a triangle is the negative of that of a spherical triangle.
(Any significance in that symmetry, by the way? Do we feel diminished as a species because dogs can hear a noise that we can't?) Soon after that, you realize that you have forgotten how to calculate the area of a triangle, and how many pints there are in a quart.
This remarkable result derives from two preliminary theorems: (a) the areas of all triangles on the same base, whose third vertex lies anywhere on an indefinitely extended line parallel to the base, are equal; and (b) the area of a triangle is half that of any parallelogram (including any rectangle) with the same base and height.
Archimedes' result bears on the problem of circle quadrature in the light of another theorem he proved: that the area of a circle equals the area of a triangle whose height equals the radius of the circle and whose base equals its circumference.
The area of the trapezoid is the sum of the areas of a "triangle," due to the cyclic tidal breath and to the pressure variation Peak pressure − PEEP only, independent on the "starting value" (PEEP), and of a "rectangle" associated to the lung volume variation starting from a pressure level higher than zero (PEEP).
The area of a spherical triangle is given by the product of its spherical excess E and the square of the radius r of the sphere it resides on in symbols, Er2.
A congruent number is simply a whole number like 1, 2, 3,... that happens to be the area of a right triangle (one with a 90-degree corner) whose three sides all have lengths that are either whole numbers or fractions like 3/2, 10/3,..
Find the area of a regular triangle.
The area of a right triangle is calculated with the simple formula A = ab/2.
