Math Quiz/Exam

• mean - sum of the numbers
• mode - most frequent number
• median - middle value
• mean - average
• median steps : Addition and Divide
• center - fixed point
• circle: distance from a fixed point
• Radius :line segment 1 and half diameter
• chord - connecting any two points of the circle
• diameter - chord that passes through
• arc - a portion of a circle
• secant - line intersect a circle that passes through two points
• tangent - a line touching the circle
• diameter is the Longest chord
• Transversal line - intersecting coplanar lines at two or more distinct point
• parallel - do not intersect
• point - no dimensions
• line - infinite length and width but no thickness
• space - se of all points
• collinear - same line
• coplanar - same plane
• ray -one endpoints and extends
• Opposite rays - one endpoint opposite direction
• intersecting lines - meeting at common endpoint
• perpendicular - two intersecting lines that form 90
• skew - noncoplanar
• 3 triangle - 180
• 4 quadrilateral - 360
• 5 pentagon - 540
• 6 hexagon - 720
• 8 Octagon - 1080
• 9 Nonagon - 1260
• 10 decagon - 1440
• 11 undecagon - 1620
• 12 dodecagon - 1800
• if a chord is extended or both sides become the SECANT
• line segment - two endpoints is part of a line
• vertex - two rays
• acute - greater than 0 less than 90
• right angle - exactly 90