角度换算助手 vs BoBo Calculate

这是一款专业的平面几何求解工具，适合学生、工程师与日常测量换算。输入已知条件，App 会实时计算其余边长、角度与面积，并展示公式与计算步骤。 【支持的图形（16 种）】 • 三角形：直角三角形、任意三角形（SSS/SAS/AAS）、等腰三角形 • 圆与曲线：圆、扇形、圆环、椭圆 • 四边形：矩形、正方形、平行四边形、梯形、菱形 • 正多边形：正五边形、正六边形、正八边形及任意正 n 边形 【核心功能】 • 智能求解：按图形输入所需已知量（圆/正方形等可为 1 个，三角形等通常为多个），自动推算其余参数 • 实时计算：边长、角度、面积即时更新 • 角度单位：支持「度」与「度分秒（DMS）」 • 长度单位：毫米、厘米、米 • 公式与步骤：每个图形附带常用公式及本次计算步骤 • 图形示意图：直观标注字母与符号 • 内置例题：一键填入典型算例 • 历史记录：保存、搜索、收藏、恢复计算 • 分享：导出计算结果为文本 • 外观：浅色 / 深色 / 跟随系统；支持中英切换 【隐私与安全】 • 完全离线运行，无需联网 • 不收集、不上传任何个人数据 • 无广告、无内购、无账号 【适用场景】 课堂练习、工程制图、土地测量、木工下料、竞赛备考等需要快速几何验算的场景。 如有问题或建议，请通过支持页面联系我们。

Bobo Geometry Workshop makes triangle calculations clear, visual, and practical. Enter any three known sides or angles to solve a triangle in seconds. Whether you are studying geometry, checking your work, building stairs, or planning a cut, every result is easy to understand and verify. 【Complete Triangle Solver】 Supports SSS, SAS, SSA, ASA, AAS, and AAA combinations. When an SSA problem has two valid solutions, both are shown. Results include: • All sides and angles • Triangle classification • Area, perimeter, and semiperimeter • Three altitudes • Inradius and circumradius • Degree and radian modes 【Visual Diagrams and Clear Steps】 Triangles are drawn to the calculated side proportions. You can also display altitudes, medians, angle bisectors, incircles, circumcircles, and triangle centers. Detailed formulas and substituted values show how each answer was calculated, making results easier to learn from and verify. 【Practical Tools】 Built-in calculators help with common measurement tasks: • Stair dimensions • Wood lengths and miter angles • Pipe offsets • Slopes and elevation changes • Brace lengths 【Save and Share】 • Keep recent calculations on your device • Reload previous values and continue calculating • Export results as images • Copy and share calculation results • Customize tool order and text size • Switch between Simplified Chinese and English The triangle calculator is free to use. An optional subscription unlocks the stairs, wood, pipe, slope, and brace calculators. Calculation inputs, results, and history are processed and stored locally on your device and are not uploaded to a developer server. Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/