圆与扇形、毕氏定理
Authored by 1298 YING
Mathematics
8th Grade
Used 7+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 10 pts
有一直角三角形，直角边为8cm，斜边为17cm，求其面积。
15cm
60cm
68cm
72cm
2.
MULTIPLE CHOICE QUESTION
15 mins • 10 pts
有一直角三角形，直角边为5cm，斜边为13cm，求另一直角边的长度。
5cm
8cm
12cm
14cm
3.
MULTIPLE CHOICE QUESTION
15 mins • 10 pts
将一梯子斜靠在墙上，梯脚与墙壁的距离为0.6m，梯顶到地面的距离为0.8m，求梯子的长度。
0.1m
1m
10m
10cm
4.
MULTIPLE CHOICE QUESTION
15 mins • 10 pts
4cm
4.5cm
2√2 cm
4√2 cm
5.
MULTIPLE CHOICE QUESTION
15 mins • 10 pts
12cm
24cm
6.
MULTIPLE CHOICE QUESTION
15 mins • 10 pts
有一圆，直径为20cm，求其周长。（取π=3.14）
31.4cm
62.8cm
125.6cm
251.2cm
7.
MULTIPLE CHOICE QUESTION
15 mins • 10 pts
有一圆，半径为7cm，求其面积。（取π=22/7）
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