1. Angry Birds

2. Complementary angles Complementary angles are two angles that add up to 90 degrees. As shown in the picture 25 + 65= 90 degrees.

3. Supplementary angles Supplementary angles are two angles that add up to 180 degrees. As shown in the picture 45 degrees plus 135 degrees, equals, 180 degrees.

4. Acute Angles Acute angles are the smallest type of angles. It ranges from 1 degree to 89 degrees. Acute angles are found in shapes such as rhombus, or a kite.

5. Right angles Right angles are strictly measured at 90 degrees. They are very common. They are found on countertops, squares, rectangles, and on many corners of everyday items.

6. Obtuse angles Obtuse angles are measured from 91 degrees to 179 degrees. They are found in shapes such as a pentagon.

7. Straight angle A straight angle is measured at exactly 180 degrees. They are found in train tracks, legs of a table, or light beams.

8. Reflex angles Reflex angles are the largest type of angles. They are measured from 181 degrees to 359 degrees. They are found in the outside angle of a shape.

9. First step Go to level 3 in the 6th stage. The level looks like this.

10. Where to shoot the birds The first bird you will shoot at about a 75 degree angle. If you shoot it just right, you will kill all the birds, except a little one, and it will be badly injured.

11. Last step This will be the last bird to shoot. If you shoot it at a perfect 90 degree angle, the last bird will be killed on contact.

12. 3 stars To get 3 stars, you will follow the exact same steps that I did. If you shoot them at the same angles as I did, you will get 3 stars.

13. Hope you enjoyed the presentation!