# Math Project #1

More Options: Make a Folding Card

#### Storyboard Description

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#### Storyboard Text

• Hello, my name is Grace.  Today I will be your guide for the mini-poster I created.﻿
• This  is a right angle. A right is an angle of 90°, as in a corner of a square or at the intersection of two perpendicular straight lines.
• This is an adjacent angle.Two   angles  are  Adjacent  when they have a common side and a common vertex (corner point) and don't overlap.  Angle  ABC is   adjacent  to  angle  CBD. Because: they have a common side (line CB) they have a common vertex (point B).
• B
• A
• C
• D
• Diameter is   a straight line passing from side to side through the center of a body or figure, especially a circle or sphere.
• A  chord  of a circle is a straight line segment whose endpoints both lie on the circle. A secant line, or just secant, is the infinite line extension of a  chord. More generally, a  chord  is a line segment joining two points on any curve, for instance an ellipse.﻿
• An  a cute triangle is a triangle   with all three angles acute (less than 90°). An obtuse   triangle is one with one obtuse angle (greater than 90°) and two acute angles. Since a triangle's angles must sum to 180°, no triangle can have more than one obtuse angle.﻿
• 60 degrees
• 60 degrees
• 60 degrees
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