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# Shapes and Designes

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S: Shapes and Designs By: Shiwon Hong

BC: Thanks For Learning

FC: Shapes and Designs | By: Shiwon Hong

1: This is a scalene triangle. What it means is that it has NO equal sides. It has 3 sides and vertices. | This is a right triangle. It means that it has a right angle with the other two angles. It has 3 sides and vertices. | This is an isosceles triangle. it is called that because it only has 2 sides that are equal. For ex: 50,50, and 80. It has 3 angles and vertices. | All these triangles have 3 sides. And, The angle sum for all of them is 180 degrees. | Triangles

2: More Triangles | A equilateral triangle is a triangle that has 3 equal sides. So, in this case, each angle would be 60 exact degrees. Its angle sum is 180 degrees. | An obtuse triangle is a triangle that has an angle that is over than 90 degrees. So, it could be, 100, 40, and 40. It's angle sum is 180 degrees. | An acute triangle is a triangle that which the angles are less than 90. In this picture, all the angles are 60. So, it can also be considered as an equilateral triangle. It's angle sum is 180 degrees.

3: Quadrilaterals | A square is a 4 sided shape that is called a quadrilateral, that has an angle sum of 360 degrees. | A non-square rectangle is a 4 sided shape but does not have 4 equal sides. So that is where the "non-square" came from. It's total angle sum is 360 degrees.

4: Quadrilaterals | An irregular quadrilateral is a 4 sided shape that has 4 sides but is put in a weird way. So, in this case, this quadrilateral has 4 sides, but doesn't look like other quadrilaterals. | A non-square rhombus is a four sided shape but does not look like a square. It's total angle sum is 360 degrees.

5: Pentagon | This is a regular Pentagon. What that means is that all sides are equal in length and each interior angle is 108. It's total angle sum is 540 degrees. | An irregular pentagon is also a five sided shape but does not look like a regular pentagon. It's angle sum is 540 degrees.

6: Hexagon | A regular hexagon is a 6 sided shape that has a total angle sum of 720 degrees. | A irregular hexagon(on right) is not a regular hexagon but still has 6 sides. It's angle sum is also 720 degrees.

7: Octagon | An octagon is an 8 sided shape that has a total angle sum of 1080 degrees. | A irregular octagon (on right) is not an octagon but still has 8 sides. It's angle sum is also 1080 degrees.

8: Decagon | A regular decagon is a 10 sided shape that has a total angle sum of 1,440 degrees.

9: Decagon | An irregular decagon is also a 10 sided shape but does not look like a regular decagon. It has an angle sum of 1,440 degrees.

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• By: Shiwon H.
• Joined: over 5 years ago
• Published Mixbooks: 0
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