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1
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1
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13
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(
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.
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c
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_____________________________________.
鐭ヨ瘑鐐?/p>
2
瑙ｇ洿瑙掍笁瑙掑舰
4
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24
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4
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1
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C
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30
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锛?/p>
锛?
锛?/p>
锛?
锛?
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5
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24
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4
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1
5
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宸茬煡涓�鐩磋杈瑰拰鏂滆竟锛?/p>
A
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B
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C
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D
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6
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ABC
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C
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A
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鎵�瀵圭殑杈瑰垎鍒负
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b
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c
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a
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3
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c
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6
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)
A
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30
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B
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60
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b
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2
3
3
B
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A
锛?/p>
30
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60
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b
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3
C
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45
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45
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b
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3
D
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30
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60
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b
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6
2
7
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C
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90
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B
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C
鎵�瀵圭殑杈瑰垎鍒负
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b
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c
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a
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2
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c
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2
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鍒欌垹
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锛?/p>
________
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b
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________
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8
锛?/p>
锛绘暀鏉愪範棰?/p>
24.4
绗?/p>
1
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Rt
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C
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b
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c
锛屽叾涓?/p>
a
锛?/p>
4
锛?/p>
c
锛?/p>
8
锛岃В杩欎釜鐩磋涓夎褰紟
鐭ヨ瘑鐐?/p>
3
瑙ｇ洿瑙掍笁瑙掑舰鐨勭畝鍗曞簲鐢?/p>