求英文高手!解题目意思!(a) After running for 10 minutes, find the size of the angle in degrees made by (i ) the minute- hand (2) the hour hand (b)Referring to the figure, find the marked angle between the minute-hand and the hour-han
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![求英文高手!解题目意思!(a) After running for 10 minutes, find the size of the angle in degrees made by (i ) the minute- hand (2) the hour hand (b)Referring to the figure, find the marked angle between the minute-hand and the hour-han](/uploads/image/z/7007465-65-5.jpg?t=%E6%B1%82%E8%8B%B1%E6%96%87%E9%AB%98%E6%89%8B%21%E8%A7%A3%E9%A2%98%E7%9B%AE%E6%84%8F%E6%80%9D%21%EF%BC%88a%29+After+running+for+10+minutes%2C+find+the+size+of+the+angle+in+degrees+made+by+%EF%BC%88i+%29+the+minute-+hand++%282%29+the+hour+hand+++%28b%29Referring+to+the+figure%2C+find+the+marked+angle+between+the+minute-hand+and++the+hour-han)
求英文高手!解题目意思!(a) After running for 10 minutes, find the size of the angle in degrees made by (i ) the minute- hand (2) the hour hand (b)Referring to the figure, find the marked angle between the minute-hand and the hour-han
求英文高手!解题目意思!
(a) After running for 10 minutes, find the size of the angle in degrees made by
(i ) the minute- hand
(2) the hour hand
(b)Referring to the figure, find the marked angle between the minute-hand and the hour-hand at 10:10.
求解释,及做题方法.(图是自己画的,可能不太好.)
求英文高手!解题目意思!(a) After running for 10 minutes, find the size of the angle in degrees made by (i ) the minute- hand (2) the hour hand (b)Referring to the figure, find the marked angle between the minute-hand and the hour-han
It's easy. The angle is composed of 2 angles, one is from 12 to 3 , that is 360*2/12=60 degrees, the other is from the hour hand direction to 12, that is 60-30*2/12=55 degrees. So, the angle is 60+55=115 degrees.