2. Formulas to recall Slope: Midpoint: Distance:

3. Definitions to recall Midsegment: Line connecting two midpoints Median: Connects a vertex of a triangle to the midpoint of the opposite side Altitude: Connects a vertex of a triangle to the opposite side at a 90 o angle Perpendicular Bisector: A line passing through the midpoint of a side of a triangle at a 90 o angle Centroid: Intersection point of the 3 medians of a triangle, this point is the center of mass Orthocentre: Intersection point of the 3 altitudes of a triangle Circumcentre: Intersection point of the 3 perpendicular bisectors of a triangle, this point is equal distance from all 3 vertices

4. Shape Properties / Classifying Shapes Parallelogram: Opposite sides are parallel. Rectangle: Opposite sides are parallel, has four 90 o angles. Square: Opposite sides are parallel, has four 90 o angles, all four sides have the same length. Rhombus:Opposite sides are parallel, all four sides have the same length. Trapizoid:One pair of opposite sides are parallel. Kite: No pairs of opposite sides are parallel. All rectangles are also parallelograms, all squares are also rhombuses To determine what type of shape you have, use the slope and distance formulas

5. Find the radius of a circle given the centre at the origin (0,0) and a point - Ch. review p.207, #4 Find the equation of a circle with the centre at the origin, given the radius - Ch. review p.207, #5,6 & Ch. review test p.218, #2 Given an equation of a circle with the centre at the origin (0,0), determine whether a point is inside, outside or on the circle - p.156, #9 Find the midpoint of a line, given two points Ch. Review p.211, #10-12 & Ch. review test p.218, p.1(a) Find the length of a line segment – Ch. review p.209, #7-9 Verify geometric properties - Isosceles triangle, Equilateral triangle, Square, Rectangle, Rhombus, Parallelogram & Trapezoid - Ch. review p.213,#13-17 & p.215,#18-19 & Ch. review test p.218, #3,4,5,6,7,8