JPH0514291Y2 - - Google Patents

Info

Publication number
JPH0514291Y2
JPH0514291Y2 JP3808588U JP3808588U JPH0514291Y2 JP H0514291 Y2 JPH0514291 Y2 JP H0514291Y2 JP 3808588 U JP3808588 U JP 3808588U JP 3808588 U JP3808588 U JP 3808588U JP H0514291 Y2 JPH0514291 Y2 JP H0514291Y2
Authority
JP
Japan
Prior art keywords
line
center point
right triangle
length
perpendicular line
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP3808588U
Other languages
English (en)
Japanese (ja)
Other versions
JPH01142978U (en:Method
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP3808588U priority Critical patent/JPH0514291Y2/ja
Publication of JPH01142978U publication Critical patent/JPH01142978U/ja
Application granted granted Critical
Publication of JPH0514291Y2 publication Critical patent/JPH0514291Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Drawing Aids And Blackboards (AREA)
JP3808588U 1988-03-23 1988-03-23 Expired - Lifetime JPH0514291Y2 (en:Method)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3808588U JPH0514291Y2 (en:Method) 1988-03-23 1988-03-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3808588U JPH0514291Y2 (en:Method) 1988-03-23 1988-03-23

Publications (2)

Publication Number Publication Date
JPH01142978U JPH01142978U (en:Method) 1989-09-29
JPH0514291Y2 true JPH0514291Y2 (en:Method) 1993-04-16

Family

ID=31264655

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3808588U Expired - Lifetime JPH0514291Y2 (en:Method) 1988-03-23 1988-03-23

Country Status (1)

Country Link
JP (1) JPH0514291Y2 (en:Method)

Also Published As

Publication number Publication date
JPH01142978U (en:Method) 1989-09-29

Similar Documents

Publication Publication Date Title
US2839841A (en) Instructional building blocks
US4428732A (en) Educational and amusement apparatus
JPH0412159B2 (en:Method)
JPH0514291Y2 (en:Method)
US3826021A (en) Device for demonstrating and calculating trigonometric functions
CN2935325Y (zh) 直多边形演示教具
JP3208390U (ja) 三角定規
KR200232077Y1 (ko) 학습용 블럭 세트, 및 학습용 교재 세트
US1132272A (en) School appliance.
CN219553121U (zh) 一种六边形教学教具
JPH068966U (ja) 「三平方の定理」学習教材
RO114203B1 (ro) Trusa pentru realizarea obiectelor unidimensionale, bidimensionale si tridimensionale
US6024574A (en) Visual aids for understanding characteristics of geometric figures
JPH0321993Y2 (en:Method)
US4330285A (en) Orientator
CN210535117U (zh) 学乐魔力尺
CN212694660U (zh) 一种三角形问题教具
CN2175117Y (zh) 一种三角形边角计算尺
JP3004070U (ja) 建物の立体模型用キット
CN2558532Y (zh) 量角画角器
JPH0529068U (ja) 図形学習用教材
CN2430286Y (zh) 旋转式多用量角器
JPH0248856Y2 (en:Method)
CN2536414Y (zh) 一种教学多用三角板
CN2265300Y (zh) 学生多用尺