div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documentcentral-dauphin-school-district-il-il-o-o-o-o-o-cd-o-o-0-o-cd-o-cd-o-o-cd-ohtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: Central Dauphin School DistrictIl Il o o o o o CD o o 0 o CD o CD o o CD o o a O CD o 0 CD o 0 o o 3 o o 8 Lesson 4-1 42 Angles of Triangles Notes Angle Sum Theorem — Find the loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader033fdocumentsusreader033viewer2022053118609d2ddfd938a031f2546eb0html5thumbnails1jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imageimg data-url=documentcentral-dauphin-school-district-il-il-o-o-o-o-o-cd-o-o-0-o-cd-o-cd-o-o-cd-ohtmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: Central Dauphin School DistrictIl Il o o o o o CD o o 0 o CD o CD o o CD o o a O CD o 0 CD o 0 o o 3 o o 8 Lesson 4-1 42 Angles of Triangles Notes Angle Sum Theorem — Find the loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader033fdocumentsusreader033viewer2022053118609d2ddfd938a031f2546eb0html5thumbnails2jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imageimg data-url=documentcentral-dauphin-school-district-il-il-o-o-o-o-o-cd-o-o-0-o-cd-o-cd-o-o-cd-ohtmlpage=3 data-page=3 class=trans-thumb lazyload alt=Page 3: Central Dauphin School DistrictIl Il o o o o o CD o o 0 o CD o CD o o CD o o a O CD o 0 CD o 0 o o 3 o o 8 Lesson 4-1 42 Angles of Triangles Notes Angle Sum Theorem — Find the loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII=...