Geometric Shapes Sam Pfleger Math Grades 9-12

Shapes TriangleQuadrilateral Pentagon Hexagon Heptagon Octagon Decagon CircleTo Quiz

Triangle Three types of Triangles: Acute, Obtuse, Equilateral, Isosceles, and Right All Angles added together equal 180 degrees To find the area the equation is: area = ½ x base x height To find missing sides use Pythagorean Theorem: Back to Shapes

Quadrilaterals Four sided shape Types of Quadrilaterals: Square, Rectangle, Trapezoid, Parallelogram, and Rhombus Sum of all angles equals 360 degrees To find the area the formula is area = base x height Back to Shapes

Pentagon Five Sided shape Sum of interior angles is 540 degrees There are exterior angles and each angle is 72 degrees. Back to Shapes

Hexagon Six sided shape Has an interior angle of 120 degrees, all added up is 720 degrees Exterior angle of 60 degrees Back to Shapes

Heptagon Seven side shape Interior angle of degrees, all together equals 900 Exterior angle is degrees Back to Shapes

Octagon Eight sided shape Interior angle of 135 degrees, summed up it equals 1080 Exterior angle of 45 degrees Back to Shape

Decagon Ten sided shape Interior angle is 144 degrees, the total of all angles is 1440 degrees Exterior angle is 36 degrees Back to Shapes

Circle No sides No angles Can find measurements of circles by finding radius. Radius is a length from center of circle to the outside. Formula for area of a circle is: area = Pi x radius squared r= radius Back to Shapes

Quiz What Shape has Seven Sides? A.HexagonHexagon B.HeptagonHeptagon C.DecagonDecagon D.CircleCircle

Incorrect A Hexagon has 6 sides Back to Quiz

Correct A heptagon has seven sides Return to title Slide

Incorrect A Decagon has 10 sides Back to quiz

Incorrect A circle has 0 sides Back to quiz