Tues, Feb. 10, 2014 Mathematical practice -- reason Triangles Classification review:...

9
ues, Feb. 10, 2014 thematical practice eason Triangles Classification review: Right Equilateral Isosceles Scalene 90 degree all sides equal 2 sides equal no sides equal angle

Transcript of Tues, Feb. 10, 2014 Mathematical practice -- reason Triangles Classification review:...

Page 1: Tues, Feb. 10, 2014 Mathematical practice -- reason Triangles Classification review: RightEquilateralIsoscelesScalene 90 degree all sides equal 2 sides.

Tues, Feb. 10, 2014Mathematical practice--reason

TrianglesClassification review:

Right Equilateral Isosceles Scalene

90 degree all sides equal 2 sides equal no sides equalangle

Page 2: Tues, Feb. 10, 2014 Mathematical practice -- reason Triangles Classification review: RightEquilateralIsoscelesScalene 90 degree all sides equal 2 sides.

Triangle InequalityThe sum of the two smallest sides must

be larger than the longest side

Page 3: Tues, Feb. 10, 2014 Mathematical practice -- reason Triangles Classification review: RightEquilateralIsoscelesScalene 90 degree all sides equal 2 sides.

Triangle Angle Measures

The sum of all angles in a triangle add to 180 degrees EVERY TIME

Page 4: Tues, Feb. 10, 2014 Mathematical practice -- reason Triangles Classification review: RightEquilateralIsoscelesScalene 90 degree all sides equal 2 sides.

Tues, Sept. 9, 2014Mathematical practice--reason

Scale FactorFor length Multiply by scale factor (scale factor is 3)

6 2

18

6

Page 5: Tues, Feb. 10, 2014 Mathematical practice -- reason Triangles Classification review: RightEquilateralIsoscelesScalene 90 degree all sides equal 2 sides.

Scale FactorFor area Multiply by scale factor squared (3 squared is 9)

6 2

Area is 12

18

6

Area is 108

Page 6: Tues, Feb. 10, 2014 Mathematical practice -- reason Triangles Classification review: RightEquilateralIsoscelesScalene 90 degree all sides equal 2 sides.

Tues, Sept. 9, 2014Mathematical practice--reason

Circle RelationshipsPerimeter Diameter

Radius

Page 7: Tues, Feb. 10, 2014 Mathematical practice -- reason Triangles Classification review: RightEquilateralIsoscelesScalene 90 degree all sides equal 2 sides.

Circle RelationshipsPerimeter Diameter

Radius

PerimeterDiameter

Radius x 2

= π

= Diameter

Perimeter = 2πr

Radius = ½ Diameter

Page 8: Tues, Feb. 10, 2014 Mathematical practice -- reason Triangles Classification review: RightEquilateralIsoscelesScalene 90 degree all sides equal 2 sides.

Angle PairsSupplementary Two angles add to 180°

complementary Two angles add to 90°

Page 9: Tues, Feb. 10, 2014 Mathematical practice -- reason Triangles Classification review: RightEquilateralIsoscelesScalene 90 degree all sides equal 2 sides.

Angle Pairsadjacent Common side and common vertex

(not overlapping)

verticalthe angles opposite each other when two lines cross


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