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Recap: Polygon Chases

Part of the Polygons & Quadrilaterals section of Coddy's Geometry journey. Lesson 54 of 59.

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Challenge

ABCDE is a regular pentagon, and a square ABHG is drawn outside it on the side AB. Find the gap at A between the pentagon's side AE and the square's side AG, marked ?, then press Check.

Try it yourself

Find the marked part of the figure

Find the marked part of the figure

All lessons in Polygons & Quadrilaterals

1Polygons

Angles of a QuadrilateralAngles in Any PolygonHow Many Sides?Polygon Angles with xRecap: Polygon Angles

4Parallelograms

ParallelogramsNeighbouring AnglesOpposite AnglesParallelograms with xA Diagonal InsideRecap: Parallelograms

7On Squared Paper

Make a ParallelogramDraw a Tilted RectangleDraw a RhombusDraw a Trapezoid and KiteRecap: Squared Paper

10Composite Shapes

Shapes Made of PartsRectangle and TriangleArea by SubtractingEnough to Find It?Recap: Composite Shapes

2Regular Polygons

Regular PolygonsInside a Regular PolygonRecap: Regular Polygons

5Rectangles, Rhombi, Squares

RectanglesThe Diagonal of a RectangleRhombus AnglesSquaresRecap: Special Parallelograms

8Area of Parallelograms

Area of a RectangleA Side from the AreaSlide the TopArea of a ParallelogramRecap: Parallelogram Area

11Polygon Chases

Parallel Sides in a PentagonMarks, Not LooksPentagon with xRegular Shapes TogetherRecap: Polygon Chases

3Exterior Angles

Exterior AnglesExterior Angles Make 360°Regular Exterior AnglesSides from the ExteriorRecap: Exterior Angles

6Trapezoids and Kites

TrapezoidsIsosceles TrapezoidsTrapezoids with xKitesRecap: Trapezoids and Kites

9Area of Trapezoids

Area of a TrapezoidA Missing BaseFind the Height FirstTrapezoids by AreaRecap: Trapezoid Area

12Final Challenges

Final: The Garden BedFinal: Enough to Finish?Final: The RampFinal: The Gable WallFinal: The Star Point