Let's solve plane figures problems!
Once you have completed the basic questions from Stage 1 to Stage 4,
try to solve the challenging problems on the Final Stage !
If you can't solve a ploblem, you can check the hint of the question or ask the answer to your friends via Twitter.
'Angles?' contains following contents:
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-The sum of the Angles of a triangle
-Exterior angle of a triangle
-Isosceles triangle
-Right-angled triangle
-Vertical angle
-Corresponding angle
-Alternate angle
-Parallelogram
-The sum of the Angles of a quadrilateral
-The sum of the Angles of a polygon
-Inscribed angles
-Alternate segment theorem
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让我们来解决平面图形的问题！
一旦你已经完成了从第一阶段到第四阶段的基本问题，
尝试解决具有挑战性的问题的最后阶段！
如果你解决不了一个ploblem，你可以检查提示的问题，或问的答案给你的朋友通过Twitter。
“角度？包含以下内容：
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三角形内角之和
一个三角形的外角
- 等腰三角形
- 直角三角形
垂直角度
对应角
替代角度
平行四边形
的四边形的角和
一个多边形的角的和
铭刻的角度
备用段定理
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Ver 2.8.6
?Fix bugs.
Ver 2.2.1
Fix the bug that prevents inquiry.
Ver1.4
Fix some bugs.