BC: We live within shapes.
FC: By:Han | Shapes and Designs
1: Shapes are all around us, in fact they're everywhere! We use shapes in architecture, designs, video games, and more! Not only do we live in a world of shapes, we need shapes!
2: A polygon is a closed figure made of segments that intersect only at endpoints.
3: + | = | Line segment + l s= polygon
4: A regular polygon is a figure where all the sides and angles are congruent. An irregular polygon has different lengths, angles of different measure, or both.
7: Triangles are the strongest structure. e.(Bridges) Triangles are shapes with 3 sides and 3 vertices. There are scalene, isosceles, and equilateral triangles. Also obtuse, acute, and right angle triangles. | N: equilateral triangle S: 3 V: 3 A: 180 Acute triangle
8: N: Isosceles triangle S: 3 V: 3 A:180 Acute triangle | To find the area of a triangle, you must do: (B x H) / 2 | Pumpkin candy holder
9: N: Scalene triangle S: 3 V: 3 A: 180 Obtuse triangle | How 2 memorize Equilateral:All sides are equal. Scalene: None of the sides or angles are equal. Isosceles: Don't have one for this one!
10: N: Right Triangle V: 3 S: 3 A: 180
11: Quadrilaterals | N: Square V: 4 S: 4 A: 360 | 2 find the area of a square.. you must do: (S*2) S = side length
12: N: Rectangle S: 4 V: 4 A: 360 | Did u know... that a square is considered a rectangle but a rectangle is not considered a square?
13: N: Rhombus S: 4 V: 4 A: 360 | N: Parallelogram S: 4 V: 4 A: 360 | Ar of P: B x H Ar of R: S x H S= side length H= height
14: N: Irregular Quadrilateral S: 4 V: 4 A: 360 | Parallel lines Transversal lines
15: Random Quadrilaterals
16: N: Pentagon S: 5 V: 5 A: 540 | If you wanted to find the area of a pentagon, it would be best of you cut it up into triangles first. | To find the total angle sum, you must do: (#of sides-2) x 180
17: N: Irregular Pentagon S: 5 V: 5 A: 540 | Who Knows?
18: The Pentagon
20: N: Hexagon S: 6 V: 6 A: 720
21: N: Irregular hexagon S: 6 V: 6 A: 720
22: N: Octagon S: 8 V: 8 A: 1080
23: N: Irregular octagon S: 8 V: 8 A: 1080
24: N: Decagon S: 10 V: 10 A: 1440 | Dec as in decade and dec as in deck the halls.
25: N: Irregular decagon S: 10 V: 10 A: 1440
26: N: Dodecagon S: 12 V: 12 A: 1800
27: Complementary angles are 2 angles that equal 90. | Supplementary angles are 2 angles that equal 180. | How to memorize