Available on Google PlayApp Store
オイラーの定理(外心と内心の距離の公式)
              nw('2016','11','26','08')

Share

Trends

trends timeline
trends timeline for %E3%82%AA%E3%82%A4%E3%83%A9%E3%83%BC%E3%81%AE%E5%9B%9B%E8%BE%BA%E5%BD%A2%E5%AE%9A%E7%90%86%20-%20Euler's%20quadrilateral%20theorem