
図形の相似 vol.1
Authored by yuta nakai
Mathematics
9th Grade
Used 6+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
次の図において,四角形ABCDと四角形EFGHは相似である。AB=4cm,EF=6cm,EH=3.6cmのとき,ADの長さを求めたい。AD=xcmとおいたとき,正しい式を選びなさい。
4:6=3.6:x
4:6=x:3.6
4:6=5:x
4:6=x:5
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
△ABCと△DEFは相似である。2つの図形の相似比を答えなさい。
5:7
6:5
5:6
7:5
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
△ABCと△DEFは相似である。∠BACと等しい角を答えなさい。
∠EDF
∠DEF
∠FED
∠EFD
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
次の図において,△ABCと△AEDは相似である。正しい式を選びなさい。
9:15=x:9
9:15=9:x
9:15=18:x
9:15=x:18
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
次の図において,△AOBと△DOCは相似であることを導くとき,適した相似条件を選べ。
2組の角がそれぞれ等しい
3組の辺の比が全て等しい
2組の辺の比とその間の角がそれぞれ等しい
2組の辺とその間の角がそれぞれ等しい
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