A. equilateral triangle B. isosceles triangle C. right triangle 相关知识点: 试题来源: 解析 C。有一个角是 90 度的三角形是直角三角形,同时两个 45 度角的边相等,也是等腰三角形,但本题主要强调直角,所以答案是 right triangle。反馈 收藏
A. 70 B. 80 C. 90 D. 100 相关知识点: 试题来源: 解析 C。三角形内角和是 180 度,已知两个角分别是 30 度和 60 度,所以第三个角是 180 减去 30 再减去 60 等于 90 度,选 C。A、B、D 选项的角度值都不符合三角形内角和为 180 度的条件。反馈...
A triangle has angles measuring 30 degrees, 60 degrees, and what other angle? A. 70 degrees B. 80 degrees C. 90 degrees D. 100 degrees 相关知识点: 试题来源: 解析 C。本题考查三角形内角和为 180 度。已知两个角分别为 30 度和 60 度,那么第三个角为 180 减去 30 再减去 60 等于 90 ...
解析 一个三角形一个角90°,一个30°,一个60°,他叫直角三角形 ,填right triangle一个六边形面积为80平方英寸,每条边都扩大三倍,放大后的六边形面积为多少?面积扩大9倍,720.结果一 题目 英文数学题求翻译求解1. A triangle with angles measuring 90°,30°and 60° is called a ___ triangle using the...
A triangle has angles measuring 30 degrees, 60 degrees, and 90 degrees. What is the ratio of the sides opposite these angles? A. 1:2:3 B. 1:√3:2 C. 2:1:√3 相关知识点: 试题来源: 解析 B。在 30-60-90 度的直角三角形中,边长比为 1:√3:2。
Thus, the invention combines the functions of a conventional protractor and a conventional triangle ruler to facilitate drawing a variety of different angles of lines.KUN-MENG LIN
Ch 3.Geometry Lesson Plans Ch 4.Pi & Circles Lesson Plans Ch 5.Angles in Geometry Lesson Plans Ch 6.Triangle Geometry Lesson Plans Ch 7.Polygons & Quadrilaterals Lesson... Explore our library of over 88,000 lessons Search Browse Browse by subject...
A protractor is a tool that measures angles. It consists of a straight edge and an arc with progressively larger degree marks. To measure an angle with a protractor, place the vertex in the small circle in the middle of the straight edge. The vertex of a triangle is where two sides of...
Measuring Angles Worksheet | measuring angles worksheet answer key | measuring angles worksheet free | measuring and drawing angles worksheet at BYJU’S
Measure triangle hypotenuse and angles Auto-mark center, thirds or golden ratio Precise moving, resizing and flipping with keyboard shortcuts Fully portable with no installation needed Screen Ruler requires Windows 7 or newer and .NET Framework 4.8 or higher. ...