16.5 答复 - 第5章:角
Section outline
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Section 5.2: Angles of Rotation in Standard Positions
::第5.2节:标准位置旋转的角-
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- 270 °
- 45 °
- 135 °
- -180 °
- -45 °
- -315 °
- 240 °
- 30 °
Section 5.3: Angles in Radians and Degrees
::第5.3节:弧度和度的角- 210 °
- 225 °
- 270 °
- 300 °
- 180 °
- 30°
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There are 360 degrees and
radians in a circle. Therefore, each degree is
radians.
::圆圆内有360度和2弧度。因此,每一度为 180 弧度。 -
Multiply by
to give you
or approximately
radians.
::乘以 180 来给您512, 或大约0. 417弧度。
Section 5.4: Length of an Arc
::第5.4节:弧的长度-
::8- 3米 -
meters
::16厘米 -
meters
::32°瓦米 -
radians
::310 弧度 -
::8英寸( 8英寸) -
::12英寸 -
::35英寸 -
48.02 revolutions
::48.02革命 -
384.8 inches
::384.8英寸 -
::48 平方弧度 -
inches
::103英寸 -
inches
::56英寸 -
inches
::5512英寸 -
::25°9英寸 25°9英寸 -
::215-72英寸
Section 5.5: Area of a Sector
::第5.5节:一个部门地区-
22.34
::22.34英寸2 -
37.7
::37.7英寸2 -
43.98
::43.98英寸2 -
65.45
::65.45英寸2 -
87.27
::87.27英寸2 -
.56 radians
::.56弧度 -
1.875 radians
::1.875弧度 -
2.67 radians
::2.67弧度 -
6.18 inches
::6.18英寸 6.18英寸 -
15.14 inches
::15.14英寸 15.14英寸 -
7.46 inches
::7.46英寸 -
8.74 inches
::8.74英寸 -
15
::15 英寸2 -
125.66
::125.66英寸2 -
226.19
::226.19英寸2
Section 5.6: Angular Speed
::第5.6节:角速度-
Beth went
ft, and Steve went
ft.
::贝丝去了14英尺 史蒂夫去了28英尺 -
radians per second
::每秒6弧度 -
Beth:
ft/sec; Steve:
ft/sec
::贝丝:7 6英尺/秒;史蒂夫:14 6英尺/秒 -
6 feet from the center
::距离中间6英尺 -
6 seconds
::6秒6秒 -
Beth:
ft/sec; Steve:
ft/sec
::贝丝:7 3英尺/秒;史蒂夫:14 3英尺/秒 -
16 feet from the center
::距离中间16英尺 -
2.67 feet from the center
::距离中心2 67英尺 -
radians/minute
::30 弧度/分钟 -
radians/minute
::360弧度/分钟 -
feet per minute
::每分钟30英尺 -
feet per minute
::每分钟360英尺 -
19 inches
::19 英寸 -
radians/minute
::2 弧度/分钟 -
0.32 ft or 3.82 inches
::0.32英尺或3.82英寸
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