reuleaux triangle

Several Inequalities Involving Medians and Angle-Bisectors of Acute Triangles;

锐角三角形中线与角平分线的几个不等式

On a Weighted Inequality for the Side of an Acute Triangle;

关于锐角三角形边长的一个加权不等式

A difference replacement demonstration of the geometric inequalities of acute triangle and the corresponding application program

锐角三角形几何不等式的差分代换证法及应用程序

a triangle whose interior angles are all acute.

内角均为锐角的三角形。

Ascending Triangle

上升三角形、平顶三角形

an equilateral triangle

等边三角形,正三角形

DA triangle with one90° angle is a right triangle.

一个角为90°的三角形是直角三角形。

Of or relating to triangles; triangular.

三角形的，三角的与三角（形）有关的，属于三角（形）的

triangular diagram

三角形图解,三角图

triangular pediment

成等边三角形的三角墙

the trigonometry of spherical triangles.

球面三角形的三角学。

Many deltas are triangular in shape.

很多三角洲是三角形的。

grinding angle (=wedge angle,sharpness angle,tooth angle)

锐度角,研磨角,楔角

angular excess of a small geodesic triangle

小测地三角形的角盈

a triangle with one right angle.

有一个直角的三角形。

The side of a triangle subtends the opposite angle.

三角形的边对着对角

the angle contained by two sides of a triangle

三角形两边的夹角.

The hypotenuse is the longest side of a right triangle.

直角三角形的斜边是直角三角形中最长的边。