S.1

Find the Missing Angle

Q4 · Apr–Jun

Use the 180° angle sum to find the third angle of a triangle.

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 5 Math Find the Missing Angle Skill S.1 \cdot Triangles \cdot ★★☆ Medium \cdot Quarter 4 Name Date Score / 6 Scan for answers A triangle's angles add up to 180°. Example 75° ? 48° ? = 5 7^{\circ} Think: Subtract the two angles you know from 18 0^{\circ} : 18 0^{\circ} - 4 8^{\circ} - 7 5^{\circ} = 5 7^{\circ} . 1 40° ? Find the missing angle. 2 80° 55° ? Find the missing angle. 3 70° ? 45° Find the missing angle. 4 75° ? 10° Find the missing angle. 5 55° 50° ? Find the missing angle. 6 120° 45° ? Find the missing angle. Daniel Math Academy \cdot danielmath.com Worksheet # cjedmqn \cdot Page 1 / 2 Daniel Math Academy \cdot Grade 5 Math Answer Key S.1 Find the Missing Angle \cdot ★★☆ Medium 1 5 0^{\circ} 2 4 5^{\circ} 3 6 5^{\circ} 4 9 5^{\circ} 5 7 5^{\circ} 6 1 5^{\circ} Daniel Math Academy \cdot danielmath.com Worksheet # cjedmqn \cdot Answer Key \cdot Page 2 / 2

S. Triangles6 skills