1. SHAPES & DESIGNS - Inv. 1 The Family of Polygons
SD Benchmark Angles and Estimating Rotations and Measuring Angles.
Learning Target: I can sketch angles with given descriptions and then find the measure of the angle.
Homework: Day 2 SD Complete p. 7 and CORRECT with the EDpuzzle
(EDpuzzle is different than on the packet!!!)
Warm-up:
Can you make a triangle with two right angles? Give an example.
Can you make a triangle with two obtuse angles? Give an example.
Can you make a triangle with two acute angles? Give an example.
Can you make an equilateral scalene triangle? Give an example.
Can you make a right, isosceles triangle? Give an example.

2. Can you make a triangle with two right angles? Give an example.
Can you make a triangle with two obtuse angles? Give an example.
Can you make a triangle with two acute angles? Give an example.
Can you make an equilateral scalene triangle? Give an example.
Can you make a right, isosceles triangle? Give an example.
No!
No!
Yes!
No!
Yes!

3. a. 𝟗𝟎° 𝐢𝐬 𝟏 𝟒 𝐨𝐟 𝐚 𝐭𝐮𝐫𝐧/𝐫𝐨𝐭𝐚𝐭𝐢𝐨𝐧
Hint: 360
𝐢𝐬 𝐨𝐟 𝐚 𝐭𝐮𝐫𝐧/𝐫𝐨𝐭𝐚𝐭𝐢𝐨𝐧
𝐢𝐬 𝐨𝐟 𝐚 𝐭𝐮𝐫𝐧/𝐫𝐨𝐭𝐚𝐭𝐢𝐨𝐧
𝐢𝐬 𝐨𝐟 𝐚 𝐭𝐮𝐫𝐧/𝐫𝐨𝐭𝐚𝐭𝐢𝐨𝐧
a 𝟗𝟎° 𝐢𝐬 𝟏 𝟒 𝐨𝐟 𝐚 𝐭𝐮𝐫𝐧/𝐫𝐨𝐭𝐚𝐭𝐢𝐨𝐧
b 𝟐𝟕𝟎° 𝐢𝐬 𝟑 𝟒 𝐨𝐟 𝐚 𝐭𝐮𝐫𝐧/𝐫𝐨𝐭𝐚𝐭𝐢𝐨𝐧
c 𝟕𝟐𝟎° 𝐢𝐬 𝟐 𝒄𝒐𝒎𝒑𝒍𝒆𝒕𝒆 𝐭𝐮𝐫𝐧𝐬/𝐫𝐨𝐭𝐚𝐭𝐢𝐨𝐧𝐬
d 𝟐𝟓° 𝐢𝐬 𝟐𝟓 𝟑𝟔𝟎 𝐨𝐟 𝐚 𝐭𝐮𝐫𝐧/𝐫𝐨𝐭𝐚𝐭𝐢𝐨𝐧

4. pkt p. 5
Day 2: SD Benchmark Angles and Estimating Rotations and Angles
A. Sketch an angle with approximately the given measure.
20°
220°

5. 60°
270°

6. 150°
300°

7. 1. One third of a right angle.
B. Sketch an angle with approximately the given description. Find its measure in degrees.
1. One third of a right angle.
5. Two third of
a straight angle.

8. 2. One and a half times
a right angle.
6. One and two thirds times
a right angle.

9. 3. Three times a right angle.
7. One and a sixth times
a straight angle.

10. 4 Three and a half times a right angle.
8. Twice a straight angle.

11. C. For each pair of angles estimate the measure of each angle
C. For each pair of angles estimate the measure of each angle. Then check your estimates by measuring with an angle ruler or protractor.

12. Challenge:

13. SHAPES & DESIGNS - Inv. 1 The Family of Polygons
Did I reach my Learning Target?
I can sketch angles with given descriptions and then find the measure of the angle.
Homework: Day 2 SD Complete p. 7 and CORRECT with the EDpuzzle
(EDpuzzle is different than on the packet!!!)