U.1

예각·직각·둔각삼각형

4분기 (4~6월)

그림이나 각의 크기를 보고 삼각형을 예각·직각·둔각삼각형으로 분류하기

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@page { size: letter; margin: 0; } @media print { .ws-page + .ws-page { break-before: page; } } Daniel Math Academy \cdot Grade 4 Math Acute, Right & Obtuse Triangles Skill U.1 \cdot Triangles, quadrilaterals & symmetry \cdot ★★☆ Medium \cdot Quarter 4 Name Date Score / 6 Scan for answers A square marks a 90° angle. Example 70° 50° 60° Triangle: acute Think: All three angles are less than 9 0^{\circ}, so the triangle is acute. 1 45° 85° 50° Acute, right, or obtuse? 2 75° 65° 40° Acute, right, or obtuse? 3 25° 125° 30° Acute, right, or obtuse? 4 80° 55° 45° Acute, right, or obtuse? 5 15° 75° Acute, right, or obtuse? 6 50° 25° 105° Acute, right, or obtuse? Daniel Math Academy \cdot danielmath.com Worksheet # 8yp2zri \cdot Page 1 / 2 Daniel Math Academy \cdot Grade 4 Math Answer Key U.1 Acute, Right & Obtuse Triangles \cdot ★★☆ Medium 1 acute 2 acute 3 obtuse 4 acute 5 right 6 obtuse Daniel Math Academy \cdot danielmath.com Worksheet # 8yp2zri \cdot Answer Key \cdot Page 2 / 2

U. 삼각형·사각형과 대칭스킬 4개