2. 10-5 Trigonometry and Area
To find areas of regular polygons and triangles using trigonometry
Using trigonometric functions, students will calculate the areas of triangles and regular polygons accurately, efficiently, and to a degree of precision appropriate to the situation.

12. 10-4 Quiz
The following questions are designed to help you determine how well you understood today’s lesson.
Please take time to ask questions if you miss one and don’t know why!
Record the number you get right on your portfolio sheet 

13. 1. Find the area of the regular polygon
1. Find the area of the regular polygon. Give the answer to the nearest tenth. pentagon with a side of 6 ft
49.5 ft2
61.9 ft2
123.9 ft2
12.4 ft2
Non-Response Grid

14. 2. Find the area of the regular polygon
2. Find the area of the regular polygon. Give the answer to the nearest tenth. hexagon with a side of 6 in.
9 in2
31.2 in2
93.5 in2
187.1 in2
Non-Response Grid

15. 3. Find the area of the regular polygon
3. Find the area of the regular polygon. Give the answer to the nearest tenth. square with a radius of 13 ft
338 ft2
169 ft2
676 ft2
343 ft2
Non-Response Grid

16. 4. A park in a subdivision is triangular-shaped
4. A park in a subdivision is triangular-shaped. Two adjacent sides of the park are 581 feet and 540 feet. The angle between the sides is 83 . To the nearest unit, find the area of the park in square yards.
51,900 yd2
34,600 yd2
38,925 yd2
17,300 yd2
Non-Response Grid

17. 5. Find the area of the triangle. Give the answer to the nearest tenth
5. Find the area of the triangle. Give the answer to the nearest tenth. The drawing may not be to scale.
126.9 cm2
63.4 cm2
23.1 cm2
185.5 cm2
Non-Response Grid

18. ASSIGNMENT
10-5 p #6-36 even
Be sure to RATE your understanding of the lesson after you finish it AND give me one complete sentence as to why you rated yourself that way then summarize what the lesson was about in a sentence or two.