U.1

Acute, Right & Obtuse Triangles

Q4 · Apr–Jun

Classify triangles by their angles, from the drawing or from the angle measures.

Level

Medium

Level

Problems

Show exampleInclude answer key

@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. 1 130° 25° 25° Acute, right, or obtuse? 2 130° 20° 30° Acute, right, or obtuse? 3 25° 65° Acute, right, or obtuse? 4 55° 35° Acute, right, or obtuse? 5 85° 40° 55° Acute, right, or obtuse? 6 135° 30° 15° Acute, right, or obtuse? Daniel Math Academy \cdot danielmath.com Worksheet # ajngkq5 \cdot Page 1 / 2 Daniel Math Academy \cdot Grade 4 Math Answer Key U.1 Acute, Right & Obtuse Triangles \cdot ★★☆ Medium 1 obtuse 2 obtuse 3 right 4 right 5 acute 6 obtuse Daniel Math Academy \cdot danielmath.com Worksheet # ajngkq5 \cdot Answer Key \cdot Page 2 / 2

U. Triangles, quadrilaterals & symmetry4 skills