S.2

각으로 삼각형 분류하기

4분기 (4~6월)

모르는 각을 구하고 예각·직각·둔각삼각형으로 분류하기

난이도

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난이도

문제 수

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@page { size: letter; margin: 0; } @media print { .ws-page + .ws-page { break-before: page; } } Daniel Math Academy \cdot Grade 5 Math Classify Triangles by Angles Skill S.2 \cdot Triangles \cdot ★★☆ Medium \cdot Quarter 4 Name Date Score / 6 Scan for answers Find the missing angle. Then write acute, right, or obtuse. Example 35° ? 55° ? = 9 0^{\circ}, right Think: 18 0^{\circ} - 3 5^{\circ} - 5 5^{\circ} = 9 0^{\circ} . A 9 0^{\circ} angle makes it right, an angle over 9 0^{\circ} makes it obtuse, and three angles under 9 0^{\circ} make it acute. 1 ? 80° Find the missing angle. Acute, right, or obtuse? 2 ? 30° 65° Find the missing angle. Acute, right, or obtuse? 3 105° ? 10° Find the missing angle. Acute, right, or obtuse? 4 30° 60° ? Find the missing angle. Acute, right, or obtuse? 5 ? 80° 45° Find the missing angle. Acute, right, or obtuse? 6 60° 30° ? Find the missing angle. Acute, right, or obtuse? Daniel Math Academy \cdot danielmath.com Worksheet # vsx2g64 \cdot Page 1 / 2 Daniel Math Academy \cdot Grade 5 Math Answer Key S.2 Classify Triangles by Angles \cdot ★★☆ Medium 1 1 0^{\circ}, right 2 8 5^{\circ}, acute 3 6 5^{\circ}, obtuse 4 9 0^{\circ}, right 5 5 5^{\circ}, acute 6 9 0^{\circ}, right Daniel Math Academy \cdot danielmath.com Worksheet # vsx2g64 \cdot Answer Key \cdot Page 2 / 2

S. 삼각형스킬 6개