Traditional Culture Encyclopedia - The 24 Solar Terms - Twenty-four solar terms tubing countdown.
Twenty-four solar terms tubing countdown.
8cm。
Test and analysis: the length of AC can be obtained according to the vertical diameter theorem, and the length of OC can be obtained according to the pythagorean theorem.
Problem analysis: connecting OA, in the right angle △OAC, OA= 13cm, AC= AB=?
According to Pythagorean Theorem?
∴CD= 13-5=8cm
Answer: The oil level height CD is 8cm.
Test center: the application of vertical diameter theorem.
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