Khaemenes Academy · Open-Age Mathematics

Unit 07 Extended Practice

Generalization, model comparison, proof, and technology-assisted validation.

Directions: Show exact work before decimals, label domains or intervals, and explain calculator use.

1. {'id': 'u07-l06', 'number': 6, 'title': 'Periodic and Triangle Models in Context', 'family': 'triangles', 'week': 22, 'unit': 7, 'unit_title': 'Triangle Trigonometry, Bearings & Applications', 'essential': 'How do right-triangle ratios and oblique-triangle laws solve measurement, navigation, survey, and design problems?', 'project': 'Navigation, Survey & Triangulation Field Study'}

In a right triangle, opposite=6 and hypotenuse=10. Find sin θ.

2. {'id': 'u07-l06', 'number': 6, 'title': 'Periodic and Triangle Models in Context', 'family': 'triangles', 'week': 22, 'unit': 7, 'unit_title': 'Triangle Trigonometry, Bearings & Applications', 'essential': 'How do right-triangle ratios and oblique-triangle laws solve measurement, navigation, survey, and design problems?', 'project': 'Navigation, Survey & Triangulation Field Study'}

Given a=7, A=35°, B=62°, find angle C.

3. {'id': 'u07-l06', 'number': 6, 'title': 'Periodic and Triangle Models in Context', 'family': 'triangles', 'week': 22, 'unit': 7, 'unit_title': 'Triangle Trigonometry, Bearings & Applications', 'essential': 'How do right-triangle ratios and oblique-triangle laws solve measurement, navigation, survey, and design problems?', 'project': 'Navigation, Survey & Triangulation Field Study'}

Which law fits SAS data?

4. {'id': 'u07-l06', 'number': 6, 'title': 'Periodic and Triangle Models in Context', 'family': 'triangles', 'week': 22, 'unit': 7, 'unit_title': 'Triangle Trigonometry, Bearings & Applications', 'essential': 'How do right-triangle ratios and oblique-triangle laws solve measurement, navigation, survey, and design problems?', 'project': 'Navigation, Survey & Triangulation Field Study'}

Find c when a=5, b=8, C=60°.

5. {'id': 'u07-l06', 'number': 6, 'title': 'Periodic and Triangle Models in Context', 'family': 'triangles', 'week': 22, 'unit': 7, 'unit_title': 'Triangle Trigonometry, Bearings & Applications', 'essential': 'How do right-triangle ratios and oblique-triangle laws solve measurement, navigation, survey, and design problems?', 'project': 'Navigation, Survey & Triangulation Field Study'}

Find the area with a=10, b=12, C=30°.

6. {'id': 'u07-l06', 'number': 6, 'title': 'Periodic and Triangle Models in Context', 'family': 'triangles', 'week': 22, 'unit': 7, 'unit_title': 'Triangle Trigonometry, Bearings & Applications', 'essential': 'How do right-triangle ratios and oblique-triangle laws solve measurement, navigation, survey, and design problems?', 'project': 'Navigation, Survey & Triangulation Field Study'}

A bearing of N35°E corresponds to what standard compass description?

7. {'id': 'u07-l07', 'number': 7, 'title': 'Measurement Error, Precision & Model Defense', 'family': 'triangles', 'week': 22, 'unit': 7, 'unit_title': 'Triangle Trigonometry, Bearings & Applications', 'essential': 'How do right-triangle ratios and oblique-triangle laws solve measurement, navigation, survey, and design problems?', 'project': 'Navigation, Survey & Triangulation Field Study'}

In a right triangle, opposite=6 and hypotenuse=10. Find sin θ.

8. {'id': 'u07-l07', 'number': 7, 'title': 'Measurement Error, Precision & Model Defense', 'family': 'triangles', 'week': 22, 'unit': 7, 'unit_title': 'Triangle Trigonometry, Bearings & Applications', 'essential': 'How do right-triangle ratios and oblique-triangle laws solve measurement, navigation, survey, and design problems?', 'project': 'Navigation, Survey & Triangulation Field Study'}

Given a=7, A=35°, B=62°, find angle C.

9. {'id': 'u07-l07', 'number': 7, 'title': 'Measurement Error, Precision & Model Defense', 'family': 'triangles', 'week': 22, 'unit': 7, 'unit_title': 'Triangle Trigonometry, Bearings & Applications', 'essential': 'How do right-triangle ratios and oblique-triangle laws solve measurement, navigation, survey, and design problems?', 'project': 'Navigation, Survey & Triangulation Field Study'}

Which law fits SAS data?

10. {'id': 'u07-l07', 'number': 7, 'title': 'Measurement Error, Precision & Model Defense', 'family': 'triangles', 'week': 22, 'unit': 7, 'unit_title': 'Triangle Trigonometry, Bearings & Applications', 'essential': 'How do right-triangle ratios and oblique-triangle laws solve measurement, navigation, survey, and design problems?', 'project': 'Navigation, Survey & Triangulation Field Study'}

Find c when a=5, b=8, C=60°.

11. {'id': 'u07-l07', 'number': 7, 'title': 'Measurement Error, Precision & Model Defense', 'family': 'triangles', 'week': 22, 'unit': 7, 'unit_title': 'Triangle Trigonometry, Bearings & Applications', 'essential': 'How do right-triangle ratios and oblique-triangle laws solve measurement, navigation, survey, and design problems?', 'project': 'Navigation, Survey & Triangulation Field Study'}

Find the area with a=10, b=12, C=30°.

12. {'id': 'u07-l07', 'number': 7, 'title': 'Measurement Error, Precision & Model Defense', 'family': 'triangles', 'week': 22, 'unit': 7, 'unit_title': 'Triangle Trigonometry, Bearings & Applications', 'essential': 'How do right-triangle ratios and oblique-triangle laws solve measurement, navigation, survey, and design problems?', 'project': 'Navigation, Survey & Triangulation Field Study'}

A bearing of N35°E corresponds to what standard compass description?

β Beta Program