1.
Having equal sides and equal angles.Used of polygons.

等边等角的具有等边等角的。用于多边形
2.
triangular pediment

成等边三角形的三角墙
3.
mutually equiangular polygons

对应角相等的多角形
4.
A polygon whose angles are equal.

等角多边形各角都相等的多边形
5.
The bisectors of its base angles are equal.

底角的平分线是相等的。
6.
a dark room, street, corner, etc

黑暗的房间、 街道、 角落等
7.
(of a triangle) having two sides of equal length.

(三角形)有二等边的。
8.
a triangle with two equal sides.

有两条边相等的三角形。
9.
one-hundredth of a right angle.

等于直角的百分之一。
10.
a unit of angular distance equal to 60 degrees.

等于度的角距离单位。
11.
a square equivalent to a triangle

同三角形等积的正方形
12.
a three-sided regular polygon.

有三条边的等边多角形。
13.
a contorted explanation, excuse, etc

拐弯抹角的解释、 辩解等.
14.
a diagonal matrix in which all of the diagonal elements are equal.

对角元素相等的斜矩阵。
15.
role played by an actor in a play, film,etc

(戏剧、电影等中的)角色
16.
the base of a triangle, pyramid, etc

三角形的底边、 角锥体的底面等.
17.
The Properties for Triangles of Which Sides or Interior Angles are Equiratio Sequences;

边或内角成等比数列的三角形的性质
18.
having four equal sides and four right angles or forming a right angle.

有四等边四直角的或构成一个直角。